A biologist counts the number of zebras in a population each year, and notices an increase in the zebra population. Which describes the biologist’s actions?

Answers

Answer 1

Answer:

if I'm correct he is gathering information and is probably making a chart to graph the information about how much the zebra population is growing

Answer 2

Answer:

The correct answer is that he is observing.

Explanation:


Related Questions

Which of the following has the greatest effect
on soil's capacity to retain water?
A Soil color
B Soil particle size
C Soil texture
D Soil fragrance

Answers

The water-holding capacity of a soil is the  the amount of water that a given soil can hold for plants to utilize

The soil particle size has the greatest effect on soil's capacity to retain water.

Soil particle size and organic matter (the soil's composition) are main determinants of water-holding capacity of a soil. Smaller particles (silt and clay) have a bigger surface area than larger sand particles, allowing the soil to hold more water.

Learn more about the water holding capacity of soil: https://brainly.com/question/8464940

The drug Viagra promotes blood vessel dilation by prolonging signaling through nitric oxide (NO). How does Viagra boost NO?
a. It inhibits guanylyl cyclase in smooth muscle cells.
b. It prevents acetylcholine from binding to its receptors.
c. It stimulates guanylyl cyclase in smooth muscle cells.
d. It blocks the enzyme that degrades cyclic GMP.
e. It binds to acetylcholine receptors on endothelial cells.

Answers

Answer:

The correct answer is option d, that is, it prevents the enzyme, which degrades cyclic GMP.

Explanation:

Oral therapy for erectile dysfunction is Viagra, which is the citrate salt of sildenafil, it works by preventing a specific phosphodiesterase type 5 or PDE5, which is the inhibitor of cGMP. During sexual stimulation, nitrous oxide is released in the corpus cavernosum causing the erection of the penis in males. The nitrous oxide then stimulates the enzyme guanylate cyclase that further makes the concentration of cGMP to elevate, this generates smooth muscle relaxation in the corpus cavernosum and permitting blood the inward flow of blood.

Viagra works by increasing the influence of nitric acid by preventing PDE5, which is accountable for the deprivation of cGMP in the corpus cavernosum. At the time of sexual stimulation, the discharging of nitrous oxide takes place, the viagra inhibits PDE5 causing the levels of cGMP to elevate in the corpus cavernosum leading to smooth muscle relaxation and continuous flow of blood to the corpus cavernosum.

Which statement best summarizes how the light-dependent reactions and light-independent reactions (Calvin cycle) work together during photosynthesis
The light-dependent reactions capture energy and the light-independent reactions use that energy to make glucose
The light-dependent reactions capture energy and the light-independent reactions use that energy to make ATP
The light-dependent reactions take in glucose (food energy) and the light-independent reactions use the glucose to make ATP
The light-dependent reactions capture bees and the light-independent reactions blend those bees up into golden cheddar mac and cheese... watch
out for the stingers though
The light-dependent reactions take in glucose (food energy) and the light-independent reactions use the glucose to make energy in the form of
sunlight

Answers

The light-dependent reactions capture energy and the light-independent reactions use that energy to make glucose

The energy captured in the light-dependent reactions is stored in ATP and NADPH and is used in Calvin's cycle to fixateCO2 in order to synthesize glucose

HELPPPP PLEASE THE THING IS 53 POINTS

Answers

Answer:

B. Erosion

Explanation:

I think

Answer:

b

Explanation:

Which statement about the food chain is correct?
A.
The Harpy Eagle obtains chemical energy from the Sun.
B.
The Red-eyed Tree Frog obtains chemical energy from the Squirrel Monkey.
c. The Coconut Trees obtain light from the Sun and convert it into chemical energy.
D. The Squirrel Monkey obtains chemical energy from the Grasshopper.



Answers

C. That’s the answer that makes the most sense to me. Hope that helps! =D

Answer: Letter C

Explanation: It is true trees convert the sunlight into chemical energy in a form they could use.

list two examples of temporary change in human​

Answers

Answer:

#IN GIRLS

* adolsence

* menstruation

#IN BOYS

* penis strts turning big

*beard starts coming of face

Answer:

Changes in humans

Explanation:

Girls develop breast and start their period.

Where as boys develop a deeper voice and facial hair will start to appear.

What is the second most abundant element on earth and seems to be very important in biological processes such as oxygen transportation in the body and cellular respiration

Answers

Answer:

iron

Explanation:

Cellular respiration may be defined as the group of metabolic processes as well as reactions which occurs in the cells of the organisms that converts the chemical energy from the oxygen molecules or from nutrients into ATP or adenosine triphosphate and then releases the waste products. Thus it breaks the glucose and produces the ATP. Iron is an important element which are used in many important biological processes in the body like the cellular respiration and oxygen transportation.

A plant has a genetic defect that causes its leaves to dry out, becoming brittle and prone to injuries. The genetic defect most likely causes each leaf to lack a________

I need help. I am currently taking the test in Edg. If u are correct, I will mark u Brainliest! :)

Answers

Answer:

sufficient root system that can support the plant's growth

Answer:

The answer is a: cuticle

Explanation:

The cuticle is a waxy, water-repellent layer found on the outer covering of plants that prevents injury and water loss.

I'm just not quite sure.​

Answers

Answer:

Answer is option (c) because after meiosis cell possess only ones set of chromosome i.e (n)...... 23 chromosome......

Question 1 (1 point)

What is a byproduct? (Select the best answer.)



Something produced during the production of something else


A product that doesn't have a negative impact on the environment


A study of how much environmental impact a product causes

Question 2 (1 point)

What is embodied energy? (Select the best answer.)


The energy it takes to dispose of a product


The energy it takes to perform a life cycle analysis


A measurement of how much energy is consumed through a product's life cycle
Question 3 (1 point)

Which of the following are ways in which the industrial revolution impacted the world? (Select the three best answers.)



There was a decrease in pollution and waste.





People experienced more repetitive strain injury.


Products took less energy to produce.




More people moved from the country to cities.


Products became more expensive.

What is production energy efficiency? (Select the best answer.)

Question 4 options:

A measurement of how much energy is used in the process of making a product


A measurement of how quickly an assembly line can produce a product


A measurement of how much energy is consumed through a product's life cycle

Answers

The correct answers are:

1. A byproduct Something produced during the production of something else

2. Embodied energy is a  measurement of how much energy is consumed through a product's life cycle

What is a byproduct?

A byproduct is a secondary good that results from a manufacturing procedure, industrial process, or chemical reaction; it is not the main good or service being created.

The industrial revolution has impacted the world in the following ways:

More people moved from the country to cities.Products took less energy to produce.There was a decrease in pollution and waste.

Production energy efficiency is a measurement of how much energy is used in the process of making a product.

Learn more about byproducts at: https://brainly.com/question/21351455

#SPJ1

How do bile salts help in digestion? ​

Answers

They dissolve food in the stomach to easily pass through the intestines

Which is not a component of an ATP molecule?adenie,ribose, phosphate,NADPH

Answers

NADPH is not a component of the ATP molecule since it's only made of adenine ribose and three phosphate groups

Please help me this is hard for me

Answers

Answer:

D  

Explanation:

It is the bottom of the food chain

Answer:

D

Explanation:

It produces food for other animals

PLEASE HURRY . I AM BEING TIMED!!! (5:53) How are the international efforts at reducing resource and ecological depletion similar?

Answers

Answer:

Explanation: they operate on volunteer basis rather than a mandatory one. Because the nations do not have jurisdiction over each other.

Answer:

International efforts to reduce resource and ecological depletion operate on a volunteer basis rather than a mandatory one. This is due to the fact that nations do not have jurisdiction over each other.

Explanation:

just took practice edg 2021

This substitution score matrix called _____ is derived from protein families that are characterized by blocks of conserved amino acid sequences.

Answers

Answer:

BLOSUM

Explanation:

A substitution matrix is a matrix used in bioinformatics (and also in computational biology) to determine/estimate the rate at which one character -which is specified by a nucleotide sequence in nucleic acid alignments or by one amino acid in protein alignments-, changed to another character during the course of the evolution. The BLOcks SUbstitution Matrix (popularly known as BLOSUM) is a substitution matrix used to score one amino acid for another in a protein alignment. The BLOSUM substitution matrix is particularly useful to compare evolutionarily conserved regions between protein sequences and thus score their alignments, where each entry is indicated by a similarity score between two amino acids.

Definition: This is the location where two or more bones make contact. This junction allows for
movement and structural support.


CAN SOMEONE PLZZ HELP REPORT CARDS ARE DUE TOMORROW

Answers

Answer:

Joint.

Explanation:

A joint can be defined as the location where two or more bones make contact.

Also, a ligament refers to a short elastic band-like tough fibrous tissue that holds the bones of a joint together so as to keep them in place. This joints are able to move (lengthen and shorten) as a result of the presence of muscles.

Basically, this junction known as joints are typically found in vertebrates and it allows for movement and structural support.

Hence, the ability of the human body to make movements such as sitting down, kneeling, standing up, bending, walking, running etc., is solely dependent on the joints. Thus, without joints all vertebrates would be completely rigid and static.

1. What happened to the balloons when the bottle was squeezed? /2​

Answers

Answer:

the balloons blew then flew

What does geological time have to do with rocks?

Answers

Answer: Measuring the amounts of radioactive elements in rocks let scientists useabsolute dating to give ages to each chunk of time on the geologic time scale. For example, they are now able to state that the Jurassic began about 200 million years ago and that it lasted for about 55 million years.

Explanation:

Which of the following is a benefit of genetic engineering to humans?
Reducing diversity of organisms
B
Developing medicines for humans
Decreasing the yield of crops
Producing foods with low nutritional value

Answers

The answer is B. Developing medicines for humans.

Answer choice A would not benefit society, nor would answer choices C and D.

Brainliest please!

help me please!!
the thing is 42 points it’s the most i could put

Answers

Answer: I

Explanation:

I’m pretty sure the answer is  i

Answer:

h

Explanation:

how are hurricanes started? rain
snow
thunderstorms
sleet

Answers

Answer:

A pre-existing weather disturbance: A hurricane often starts out as a tropical wave. ... Thunderstorm activity: Thunderstorms turn ocean heat into hurricane fuel. Low wind shear: A large difference in wind speed and direction around or near the storm can weaken it

Explanation:

Answer:

and wind

Explanation:

How does the population growing negatively impact earth

Answers

Well as the population grows, our resources start to decrease. More resources are wasted every single day of our lives and we still keep digging them all out, what makes it worse is, since animals keep going endangered, humans keep coming and coming and if it keeps happening we will have no animals. Not to mention people are burning forests, the things we need to breathe.

The maximum number of individuals that an environment can support is called the ___. A)population density B)Competition Factor C)density Independent factors D)carrying capacity

Answers

Answer:

D

Explanation:

Answer:

D

Explanation:

Population density is how dense a population is or how to spread out it is. Though carrying capacity is how much a thing such as land can carry such as lifeform and organisims.

Match the type of water with the location in which it is found. surface water ,water vapor, atmosphere, well ,glacier ,river, groundwater ,ice. ​

Answers

Answer:

Surface water <---> river

Ground water <------> well

Water vapour <------> atmosphere

Glacier <-------> ice

Explanation:

Answer:

Plato

Explanation:

11
Sea otters move into the ocean bay. The eat all the sea urchins. This change will cause the
A. Kelp to have less food
B. crabs to have less food
C. Sea ducks to have more food
D.Arctic foxes to have more food

Answers

well sea urchins are primarily food for crabs, so by sea otters eating the sea urchins crabs will end up with no good

The presence of sea otters in an ocean bay will result in a reduction in the amount of food available to carbs because they feed on sea urchins. Therefore, option (B) is correct.

What is food chain?

The linear relationship between creatures that demonstrates how they obtain energy by feeding on one another is referred to as the food chain.

The information provided in this inquiry suggests that sea otters migrate into the ocean bay and consume all of the sea urchins there.

This leads one to believe that they cut down on the food supply of another eater of urchins, such as carbs. Because of this, the introduction of sea otters into the ocean bay will result in there being less food available for carbs.

Learn more about food chain, here:

https://brainly.com/question/16065961

#SPJ2

For a quantitative trait explained by four loci in an additive fashion, if the four locus genotype AaBbCcDd corresponds to a phenotypic value of 32, and the four locus genotype AABBCCdd corresponds to a phenotypic value of 48, then what is the phenotypic value corresponding to the four locus genotype AABbcCDD?

Answers

Answer:

48

Explanation:

In genetics, additive effects represent a mode of quantitative inheritance that occurs when the combined effects of alleles (i.e., the variants of a gene that lead to differential expression of a phenotypic trait) at two or more loci are equal to the sum of their individual effects, contributing thus to the final phenotype. Therefore, the additive variance can be explained by the sum of the individual effects of identified loci/genes that have an additive effect on this quantitative trait. In this case, each gene shows an additive effect (equal to 8 for each dominant allele), thereby the phenotypic value corresponding to the genotype AABbCcDD will be equal to 48 (i.e., 16 + 8 + 8 + 16 = 48).

How do plant cells differ from animal cells

Answers

Answer: Plant cells have chlorophyll, chloroplasts, cell walls, a more blocky shape, and larger vacuoles. Animal cells have a more rounder shape, no cell wall but only a cell membrane, smaller vacuoles, and other organelles such has centrosomes, which plant cells don’t have.

Explanation:

Answer:

Plant and animal cells are  different in that plant cells have chloroplasts and rigid cell walls, while animal cells do not.

Potassium thiosulfate (K2S2O3) is used to remove any excess chlorine from fibers and fabrics that have been bleached with that gas. The reaction is K2S2O3 + 4Cl2+ 5H2O→2KHSO4 + 8HCl a. What mass of HCl will be produced at the same time that 45.0 g of KHSO4 is produced? (5 pst) b. What mass of Cl2 is consumed along with 2.20 x 1024 molecules of H2O? (5 pts)

Answers

Answer:

The correct answer is a) 48.16 grams of HCl will be produced, b) mass of chlorine consumed is 206 grams.

Explanation:

a) The reaction given is:

K₂S₂O₃ + 4Cl₂ + 5H₂O ⇒ 2KHSO₄ + 8HCl

Based on the given information, the mass of KHSO4 is 45 grams. The moles of KHSO4 can be determined by using the formula,  

Moles = given mass/Molar mass

= 45/136.16

= 0.33 Moles of KHSO₄

From the reaction it can be seen that when 2 moles of KHSO₄ is produced, 8 moles of HCl is also produced. Therefore,  

2 moles of KHSO₄ = 8 moles of HCl

So, moles of HCl will be,  

Moles of HCl = 8 × 0.33/2

= 1.321 moles

Now the mass of HCl is,  

Mass of HCl = Moles of HCl × Molar mass of HCl

= 1.321 × 36.46

= 48.16 grams of HCl

b) It is known that 1 mole is equal to 6.023 × 10²³ molecules

In the given case, the molecules of water is given, that is, 2.20 * 10²⁴ molecules. Now let us consider that the moles of water is x.  

x mole of water = 2.20 × 10²⁴ /6.022 × 10²³

= 3.653 mole of H2O

From the reaction given, it can be seen that when 5 moles of water are consumed, 4 moles of chlorine are consumed.  

5 moles of water = 4 moles of chlorine

3.653 moles H₂O = x moles of Cl₂

Moles of Cl₂ = 4 × 3.653 /5  

= 2.906 moles Cl₂

Now the mass of Cl₂ determined as,  

Mass of Cl₂ = moles of Cl₂ × Molar mass of Cl₂

= 2.906 × 70.9

= 206 grams

Bromothymol blue (BTB) is a chemical that can be used as an indicator of the pH of a solution. Because CO2 produces an acid in water, BTB can indirectly measure how much CO2 is present in a solution. When placed in solutions with neutral pH (little CO2), the solution appears green. In solutions with low pH (high CO2), the solution appears yellow.

A teacher performed a demonstration to investigate how photosynthesis and respiration cycle carbon and oxygen. She placed a few drops of BTB in a test tube containing distilled water. Because distilled water has a neutral pH, the solution appeared green. The teacher used a straw to blow into the solution, and the solution turned yellow. She then placed an aquatic plant into the test tube, covered it to keep it air tight, and placed it under a light for 24 hours.

What color would the solution in the test tube be after being in the light, and what would it be if it were then placed in the dark for 24 hours, and why?
A
Green after being placed in the light because the plant would remove CO2 by photosynthesis; yellow after being placed in the dark because the plant would release CO2 by respiration.

B
Yellow after being placed in the light because the plant would release CO2 by photosynthesis; green after being placed in the dark because the plant could not photosynthesize in the dark.

C
Green after being placed in the light because the plant would remove CO2 by photosynthesis; green after being placed in the dark because no CO2 would enter the tube since it is air tight.

D
Yellow after being placed in the light because the plant would release CO2 by photosynthesis; yellow after being placed in the dark because no CO2 could leave the tube since it is air tight.

Answers

Answer:

A. Green after being placed in the light because the plant would remove CO2 by photosynthesis; yellow after being placed in the dark because the plant would release CO2 by respiration.

Explanation:

According to this question, Bromothymol blue (BTB) is a chemical that can be used as an indicator of the pH of a solution. The presence or absence of CO2 in a solution decreases or increases the pH of the solution respectively.

- BTB appears green in a neutral pH i.e. little CO2

- BTB turns yellow in a low pH i.e. high CO2

Plants, in the presence of light, will perform photosynthesis and use CO3 as a reactant while in the dark, will perform cellular respiration and release CO2 as a waste product. Hence, in this case where an aquatic plant was placed into a test tube and covered it to keep it air tight.

- When placed under light for 24 hours, the aquatic plant will undergo photosynthesis and remove CO2 from the solution to make the solution appear GREEN due to neutral pH.

- When placed in the dark for 24 hours, the aquatic plant will undergo cellular respiration and release CO2 into the solution making the solution appear YELLOW due to low pH.

Pls helpp! Thanks y’all

Answers

Hey There!_____________________________________Answer:

[tex]\huge\boxed{OptionA}[/tex]

_____________________________________

Since there is 1 Hom.ozygous Dominant trait and 2 heterozygous dominant trait and 1 Hom.ozygous recessive trait,

We get This kind of punnet square, when Two heterozygous Parents cross with eachother.

_____________________________________Best Regards,'Borz'

Other Questions
Help please! math question!! will give 20 points and brainliest!! Please help, where you see blank spaces is where i need answers! (reposted because i cant edit old one)1. Yo _______ la guitarra el mes pasado. (tocar, preterite)2. Mis hermanos _______ muy tarde. (dormirse, preterite)3. La semana pasada, mis amigos y yo _______ por el parque. (andar, preterite)4. T _______ a la profesora que el examen fue difcil. (decir, preterite)5. Cuando ramos pequeos, nosotros _______ mucho. (jugar, imperfect)6. Yo el examen maana. (estudiar, present progressive)7. Qu _______ nosotros en la clase hoy? (hacer, present progressive)8. Sandra _______ ir al cine esta noche. (querer, present)9. No _______ tan alto. (hablar, t negative command)10. No _______ en la biblioteca. (hablar, Uds. negative command)11. Este verano mi familia y yo _______ por Europa. (viajar, future tense)12. Yo no _______ esta noche porque tengo que estudiar. (salir, future tense)13. T _______ estudiar mucho ms. (deber, conditional)14. Ellas _______ una fiesta con muchos amigos. (tener, conditional)15. Mis padres me _______ la respuesta. (decir, conditional)16. Adnde _______ Marcos y Antonio? (ir, imperfect)17. _______ aqu ahora mismo. (venir, t affirmative command)18. _______ la mesa antes de comer. (poner, t affirmative command)19. Mis padres me _______ a qu hora empieza la cena. (decir, future tense)20. Mi hermano _______ hablar espaol despues de esta clase. (poder, future tense)21. Translate the following sentence into Spanish.When I was young, I used to visit my grandparents frequently and I used to play with my friends during the summer.22. Use the prompt in parentheses to answer the following question. Your answer should be a complete sentence that uses reflexive verbs in the preterite tense.What are three things that you did this morning before going to school? (get up early, dress well, and wash your face)23. Use the prompt in parentheses to answer the following question. Your answer should be a complete sentence in the preterite tense.What are two things that you brought to school with you today? (a book, a pencil)24. Use the prompt in parentheses to answer the following question. Your answer should be a complete sentence in the preterite tense.What did you do yesterday? (go to school, have an exam in Spanish class)25. Use the prompt in parentheses to answer the following question. Your answer should be a complete sentence in the preterite tense.What time did you arrive at school today? (7 in the morning)26. Translate the following sentence into Spanish.When I go to the beach, I wear a bathing suit, a T-shirt, and sandals.27. Translate the following sentence into Spanish.This salad has lettuce, carrots, cucumber, tomato, and onion.28. Translate the following sentence into Spanish.Our teacher tells us we should study.29. Translate the following sentence into Spanish.It is doubtful that I will watch television tonight.30. Your little brother has come into your room without permission. Use an affirmative command and a negative command to tell him to leave your room and not to talk.31. Use the prompt in parentheses to answer the following question. Your answer should be a complete sentence in the future tense.What are your plans after you graduate from high school? (travel to Mexico, go to a university, meet a lot of people)32. Use the prompt in parentheses to answer the following question. Your answer should be a complete sentence in the conditional tense.If you had one million dollars to spend on anything you wanted, what would you do? (buy a car, have a big party for my friends).33. Translate the following passive (se) voice construction into Spanish.It is prohibited to talk in class.34. Translate the following sentence into Spanish.I will be able to study this weekend.35. Using the expression ya, translate the following sentence into Spanish.I already spoke with my parents.36. Use the prompt in parentheses to answer the following question. Your answer should be a complete sentence in the preterite tense.What time did you start your Spanish exam? (1 in the afternoon)37. Your friends are at your house for a party, and your mom has ordered a lot of food. Use an affirmative command to tell them to please eat a lot of pizza.38. Translate the following sentence into Spanish.Mara is taller than Pedro.39. Using the expression ya, translate the following sentence into Spanish.I no longer go to bed early.40. Translate the following sentence into Spanish.I will go out on Friday night after the final exam. help me with this please Factorise completelya) ( 2 + 2 + 2) a) 9a(x 3b ) - 4 (x 3b) b) 5a(2b 3 ) - 4 (2b 3) c) x( 2h-k )+ 3y ( k 2h ) I NEED SOMEONE TO ANSWER SOME QUESTIONS COMMENT IF YOU CAN ANSWER THEM !!!! FOR ELA ABOUT FLANNER O CONNER Select all that apply. Remember that you can add prefixes and suffixes to a word to create a new word.Which of the following are new words that come from the root word thank?Hint: remember that prefixes and suffixes are un-, -S, -ing, -ed, -er, and -ful.thanksthankfulthankerunthankingthankingthankedunthankfulthankfuls Donde surge la enciclopedia porfa What are the THREE precedents that Washington set as the first president of the United States? Which is NOT an example of a structural adaption?A. a pelican's pouch-like beakB. Camouflaged seahorsesC. The migration of birdsD. dense fur on a brown bear Find the slope between the following two points: (3, 1), (5, 4). What does gyrase do during DNA replication? This chart illustrates the type and number of items collected during a clean up of a beach. Based on the chart, what approximate percentage of the total items result from the action of people? who is your favorite character from Gorillaz and why?? :) WHAT IS THE CLIMAX OF THE STORYOn March 15, 2014, the residents of New York City buried a time capsule. Their hope was that on March 15, 2114, it would be opened and the future residents of NYC would see what life was like 100 years in the past.Locked away in the titanium cylinder were important artifacts from the present day. The objects were chosen by citizens from all walks of life and professions: librarians, teens, computer programmers, medical professionals, research scientists, gardeners, biologists, and more.Etched onto the surface of the time capsule were the words of a famous author, William Faulkner: "I believe that man will not merely endure. He will prevail.because he has a soul, a spirit capable of compassion and sacrifice and endurance."The capsule was buried with much hope for the future.Sadly, things didnt turn out as they had hoped.By March 15, 2514, New York had become a desperate place. Something big had changed. The city was in near ruins. Citizens were terrified.Two teens or kids, as they were called now were on their way home from a secret meeting. As they walked in the shadows to avoid detection, they tripped on a huge titanium cylinder. Etched into the surface were a series of scratched-out words. The only words they could make out were, "He will prevail."The kidz dragged the heavy cylinder into a hidden alleyway and twisted it open. The glow from their flashlights revealed what was inside. With gasps of relief, they looked at each other with hope in their eyes for the first time in years. Can someone please answer these 2 for me :)) I WILL GIVE BRAINLISTTTTT Find the sum of the first 47 terms of the following series, to the nearest integer.13, 18, 23, ... Which of the following is an example of potential energy? O A. The energy of vibrating air O B. The energy of moving particles O C. The energy in chemical bonds OD. The energy of a runner on a flat road HELP!!!! Please help me!!! Find the measures of the exterior angles. Does anyone know if there are any celebrations/festivals during Hanukkah?