I NEED HELP ASAP PLZZZZZZZZZZZZZZZZ

I NEED HELP ASAP PLZZZZZZZZZZZZZZZZ

Answers

Answer 1

Answer:

B. Bald eagles are hunted until near extinction, population recovers

Explanation:

A bottleneck effect can arise when the population of a species is drastically reduced by an occurrence. Human activities plays a major role in regard to creating a bottleneck effect in our present day. Human activities such as overhunting result into bottleneck effect. When overhunting reduces the population of a particular species, the few individuals left would have a reduced genetic variation which is not representative of the original population. The few individuals left further reproduces individuals of their kind carrying a genetic composition that is different from the original gene composition of the old population.

The case of the hunting of bald eagles until near extinction before they begin to recover is a perfect case of the bottleneck effect. Only a small proportion of the eagles original population survives. Generic variation reduces. The genetic variation in the new population of the bald eagles will be different from that of the original population.


Related Questions

Need help please …..

Answers

The answer is either a or c
D
Is the correct answer

Blood banks dispose of blood that has low levels of bisphosphoglycerate. What would be the probable reason for doing so

Answers

Answer:

Erythrocytes low in BPG does not unload O2 very well.

Arrange the following sequence of events in the reproduction of flowering plants:
Germination, seed formation, fertilization, Pollination, dispersal of seed​

Answers

Answer:

Pollination →Fertilisation → seed formation → dispersal of seed → Germination

Explanation:

This is the correct sequence of events in the reproduction of flowering plants.

which is used to make many copies of DNA?

Answers

Answer:

Polymerase chain reaction (PCR) is used to make many copies of DNA .

hope it is helpful to you.

Answer:

Polymerase chain reaction (PCR) is used to make many copies of DNA .

hope it is helpful to you.

Kaji pernyataan berikut.

Pertumbuhan bakteria adalah lebih baik dalam keadaan gelap daripada keadaan bercahaya.

(a) Nyatakan satu pernyataan masalah daripada maklumat di atas. [1 markah]

(b) Cadangkan satu hipotesis untuk menyiasat pernyataan di atas. [1 markah]

(c) Berdasarkan pernyataan yang diberi, reka bentuk satu eksperimen makmal untuk menguji hipotesis anda menggunakan dua piring petri steril dengan penutup berlabel X dan Y, dawai gelung, larutan kultur bakteria Bacillus sp., agar-agar nutrien steril dan pita selofan.
Huraian anda harus mengandungi aspek berikut:

(i) Tujuan eksperimen [1 markah]
(ii) Mengenal pasti pemboleh ubah [2 markah
(iii) Prosedur dan kaedah [4 markah]
(iv) Penjadualan data [1 markah)​

Answers

Answer:

i didn't understand yiur language

True or false: Drug resistance only arises from an organism gaining the genetic information for the resistance from another organism.

Answers

Drug resistance only arises from an organism gaining the genetic information for the resistance from another organism.

Answer: True

Why do you think gene therapy is such a promising field for this disease?

Answers

Answer:

Gene therapy replaces a faulty gene or adds a new gene in an attempt to cure disease or improve your body's ability to fight disease. Gene therapy holds promise for treating a wide range of diseases, such as cancer, cystic fibrosis, heart disease, diabetes, hemophilia and AIDS.

What are the characteristics of annelidas

Answers

Answer:- They are coelemate

-The body is covered with thin curticle

-They are triploblastic

-The have long and segment bodies

-Annelidas are bilaterally symmetrical

Which does not provide for enhanced genetic mixing?
A.Mix-matching
B.Random segregation
C.Crossing over
D.Fertilization that occurs through sexual reproduction

Answers

Answer:

A. Mix-matching

Explanation:

Sexual reproduction increases genetic variation in offspring by three main mechanisms: 1-random assortment of chromosomes during meiosis 2-genetic recombination, and 3-random fusion of gametes from different parents. In the first place, the pairs of homologous chromosomes are randomly oriented in metaphase I before they separate in Anaphase I. In consequence, daughter gamete cells receive different combinations of chromosomes. Second, recombination (also called crossing over) refers to the interchange of genetic material between non-sister chromatids during prophase I, thereby also increasing genetic variation in daughter cells. Third, the fusion of two haploid cells (i.e., gametes) in diploid organisms results in the formation of a single zygote cell that develops into a new organism, thereby the process of random fertilization between any two gametes generates different diploid zygotes, increasing thus genetic diversity.

Select the correct answer from each drop-down menu. Study the graphs, and then complete the passage. An anomaly in global temperature is a deviation from what is normal or expected. The graph shows that global atmospheric co2 ___(increased exponentially. Remained constant. Increased slightly)in the twenty-first century, and global temperature also increased during the same time. Based on the timeline, these statistics suggest a correlation between climate change and ___(wind energy production. Use of electric cars. Industrial carbon emissions). If the current trend of increasing co2 levels continues, the greenhouse effect will continue to ___(warm the planet. Release gas into space. Destroy carbon dioxide) .

Answers

Answer:

Increased exponentially

Industrial carbon emission

Warm the planet

Explanation:

The rapid increase in global CO2 in the 21st century has raised concerns over the lingering effect of global climate change which could result due to the exponential increase in CO2 emission at this time. This rise in global atmospheric CO2 has been observed to have a positive relationship with the level of industrial carbon emission. The rise in emission of industrial carbon has been tipped to be responsible for the exponential rise in global atmospheric CO2. CO2 is a form of green house gas responsible for warming the planet.

Answer:

An anomaly in global temperature is a deviation from what is normal or expected. The graph shows that global atmospheric co2 increased exponentially in the twenty-first century, and global temperature also increased during the same time. Based on the timeline, these statistics suggest a correlation between climate change and Industrial carbon emissions. If the current trend of increasing co2 levels continues, the greenhouse effect will continue to warm the planet.

Explanation:

Plato

Which scenario describes unethical lab behavior?
A.
Danny stores the chemicals required for his experiment in flasks and beakers.
B.
Anna publishes the results of her experiment on the growth rate of saplings.
C.
Jason repeatedly runs an experiment until he gets the results he desires.
D.
Mia records her observations of an experiment precisely and accurately

Answers

Answer:

A.  Danny stores the chemicals required for his experiment in flasks and beakers.

Explanation:

It is unsafe to store chemicals in open containers such as, a flask or beaker.

The correct answer is C

how would hemoglobin content differ in a person living in philadelphia compared to someone living in denver

Answers

Answer:

The correct answer is - the difference in altitudes.

Explanation:

The hemoglobin in the person of Denver who lives at a higher altitude than the person who lives in Philadelphia will be much higher. This is due to the fact that at higher elevation or altitude atmospheric pressure decreases that causes hemoglobin to stick to the RBCs and that results in less oxygen level in the body.

To compensate for this low level of oxygen levels hemoglobin content need to be higher in people living at a higher elevation.

Francis was recording plant heights for an experiment. Each time that she took a measurement, she wrote it down. Then,
she measured the plant again and compared the new measurement to the one that she had recorded in her notebook.
What was she most likely trying to do?
revise her hypothesis
check her memory
O make the data more valid
O form a conclusion

Answers

Francis was most likely trying to make the data more valid.

Answer:

c    make the data more valid

Explanation:

PLEASE if i dont get this right imma fail :(


DNA samples from four different organisms were analyzed using a procedure that separates the DNA in each sample by size.
DNA fragments separated by size
DNA fragments separated by size
What does band X represent?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
Largest fragment of DNA that traveled the fastest

(Choice B)
B
Smallest fragment of DNA that traveled the slowest

(Choice C)
C
Smallest fragment of DNA that traveled the fastest

(Choice D)
D
Largest fragment of DNA that traveled the slowest

Answers

Answer:

C) Smallest fragment of DNA that traveled the fastest

Explanation:

During this gel electrophoresis, DNA passes through a agarose obstacle course, where the poles opposite to wells are positively charged electrodes. Since DNA is negative in charge, when it is placed in wells and electric current is run, DNA will try to run towards the positive end.

Shorter DNA segments can easily  "wiggle" through the pores of the gel whereas, longer DNA segments need to do more "squeezing" to move down the gel.

Therefore, Band X in this figure is the shorter DNA segment as it move through the lane at a faster rate and reaches very far when compared to longer DNA segments.

Smallest fragment of DNA that traveled the fastest. So, the correct option is (C).

What is Gel electrophoresis?

Gel electrophoresis is defined as the technique that is used in laboratories to separate charged molecules such as DNA, RNA and proteins according to their size where the charged molecules move through a gel when an electric current is passed through it.

During gel electrophoresis, the DNA passes through an agarose barrier course, where opposite poles of the wells are positively charged electrodes, so the DNA is negatively charged when it is placed in the wells and an electric current is passed through it. DNA will try to run towards the positive end.

Shorter DNA segments can easily "squeeze" through the pores of the gel, while longer DNA segments require more "squeezing" to move down the gel. Band X in this figure is the short DNA segment as it moves through the lane at a faster rate and reaches much farther than the longer DNA segments.

Thus, smallest fragment of DNA that traveled the fastest. So, the correct option is (C).

Learn more about Gel electrophoresis, here:

https://brainly.com/question/9437877

#SPJ2

Difference between plants in a tropical location, a temperate location, or the tundra?

Answers

Answer:

a tropical location as an area near the equator a temperate location is any area that that lies between the tropical and polar zones and a tundra is the coldest of all the biomes. Tundra comes from the Finnish word tunturi, meaning treeless plain. It is noted for its frost-molded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons.

Drag the tiles to the boxes to form correct pairs.
Match the scenario with the type of weathering in action.
mechanical weathering
chemical weathering
biological Weathering
The root of a huge tree causes cracks in a rocky surface.
>
Part of a cliff breaks and falls due to waves.
>
Acid rain reacts with calcite present in limestone,

Answers

Answer:

The root of a huge tree causes cracks in a rocky surface. ---> biological Weathering.

Part of a cliff breaks and falls due to waves. ----> mechanical weathering

Acid rain reacts with calcite present in limestone---> chemical weathering

Explanation:

The root of a huge tree causes cracks in a rocky surface is the example of biological Weathering because in this weathering living organism is involved.  Part of a cliff breaks and falls due to waves of water is the example of mechanical weathering because water enters the small pores of rocks and formed cracks when expands.  Acid rain reacts with calcite present in limestone is a chemical weathering because acid present in rain water is responsible for the degradation and breakdown of rocks.

Answer:

how it should loook

A state in which an object is in motion. OA. static B. dynamic OC. vector OD.scalar​

Answers

Answer:

the answer is gonna be c

Explanation:

that is all

why is it a good idea for a bacterial cell to be abel to use glucose first as an energy source then switch to lactose

Answers

Answer:

Due to less steps and requires less energy.

Explanation:

The bacterial cell is able to use glucose first as an energy source then switch to lactose because glucose requires less steps and less amount of energy for the break down as compared to lactose. If lactose is the only sugar available to the bacterial cells, then bacterial cells will use it as energy source for the production of energy. In order to use lactose, the bacteria must express the lac operon genes, which encode the main enzymes for lactose uptake and metabolism.

is an avocado a fruit?

Answers

Yes indeed it is, I actually didn’t know that tho

which one of the following substances is not excreted by the human body?


a. carbon dioxide
b. saliva
c. urea
d. salt ​

Answers

Saliva is not excreted by the human body.

Carbon dioxide is excreted by respiration.

Urea is excreted by urine.

Salt is excreted by sweat.

Answer:

the anwer is C. urea is the only one the is not a part of human

Can you find any metaphases from the image below? What happens during metaphase?

Answers

14, 17, and 19 are close to what metaphase looks like.

Metaphase is when chromosomes line up in the middle of a cell or the metaphase plate

520 644 3017
password 12345
iam a teacher
time 2 15​

Answers

Answer:

What is this?????????????????????????

Help plzz!! I’ll mark you as brainliest
What is the definition of specific heat capacity?
O A. The amount of heat required to break the chemical bonds in 1 g of
a substance
B. The amount of heat required to form 1 g of a substance from its
elements
C. The amount of heat required for 1 g of a substance to undergo a
phase change
D. The amount of heat required to raise the temperature of 1 g of a
substance by 1°C

Answers

Option D is the correct option..

D. The amount of heat required to raise the temperature of 1 g of a

substance by 1°C

HELP!!

As you move up an energy pyramid, all of the following decreases except for

the biomass for the trophic level

the energy at each trophic level

the number of organisms in each trophic level

the average percentage of energy lost as heat

Answers

Answer:

the average percentage of energy lost as heat

Explanation:

An energy pyramid (also called trophic pyramid) is a graphical representation that exhibits how energy flows at each trophic level in a particular ecosystem. In an energy pyramid, it is possible to determine how much energy is available at each trophic level and how energy flows from producers (e.g., photosynthetic plants) to primary consumers (e.g., herbivores), then from primary consumers to the next trophic level (e.g., carnivores), and so successively to all major trophic groups (e.g., higher carnivores). During this chain, energy is lost as heat when it is transferred to the next level, and the average percentage of energy lost increases at each trophic level, thereby less and less energy is available to major trophic groups.

A sequence is defined recursively by the formula f(n + 1) = –2f(n). The first term of the sequence is –1.5. What is the next term in the sequence?

Answers

Answer:

3

Explanation:

n = - 1.5

f(n+1) = -2f(n)

f(n+1) = -2 * -1.5

f(1+1) = 3

f(2) = 3

Formation of an RNA hairpin cannot be the sole factor in the termination of transcription in prokaryotes. Explain why.

Answers

Answer:

As the transcription process proceeds, a variety of secondary structures forms by the nascent RNA. t takes place due to the fact that portions of the transcript as complementary base pairs form.

The transcript could be pause but terminate, the hairpin loop causes RNA Pol to pause. There are two different ways to terminate transcription in prokaryotes

- intrinsic termination: in this no external factors required

- Rho protein termination: binds to end of msg and moves along by ATP hydrolysis to catch up (rho is faster)

If constructive interference occurs when two waves are cresting, it will decrease the height of the crest.
True
False

Answers

Answer:

True is the answer for your question. Mark me as the brainliest first please.

Explanation:

Answer:

False

Explanation:

I said true because of the other person and it was wrong. Trust me it’s False

In the embryos of a typical dicot and a grass, true homologous structures are:Immersive Reader (1 Point) (a) Coleorhiza and coleoptile (b) Coleoptile and scutellum (c) Cotyledons and scutellum (d) Hypocotyl and radicle.

Answers

Answer:

(C) Cotyledons and scutellum

Explanation:

Among the given choice, then embryos of typically dicot and grass, true homologous structure which are called as cotyledons and also scuttellum

The scutellum is cotyledon of monocot seeds and the cotyledon found in the part of the monocot seeds and it obtain more portions of embryo in a fine manner

True or false: Antiviral drugs prevent penetration into a host cell, block transcription and translation, and prevent maturation of viral particles.

Answers

Answer:

true

Explanation:

because anti viral drugs stop the maturiy of the virus spreading faster so they supress it

why is there a rich capillary network around all endocrine glands​

Answers

the hormones secreted by the endocrine glands enter the circulation and are carried throughout the body to act upon target cells located far away from the secreting glands. Thus, endocrine glands are highly vascularized with many small capillaries among the nests of endocrine cells.

Answer:

the hormones secreted by endocrine gland enter the circulation and are carried throughout the body to act apon targeted cells located far away from the secreting gland. that's the reason why endocrine glands are vascularized with small many capillaries amongst the nest of their cells

Other Questions
How does the denotation of the phrase "back settlers" differ from the connotation Crevecoeur attaches to the word?A.Crevecoeur attaches a positive connotation to the word; the denotation of the word is neutral.B.Crevecoeur attaches a negative connotation to the word; the denotation of the word is neutral.C.Crevecoeur attaches a positive denotation to the word; the connotation of the word is neutral.D.Crevecoeur attaches a negative denotation to the word; the connotation of the word is neutral. Last year, 7,980 units were produced and 7,680 units were sold. There was no beginning inventory. The carrying value on the balance sheet of the ending inventory of finished goods under variable costing would be: Multiple Choice the same as absorption costing. Help please due today Which is the same length as 4 kilometers? help please i will give a brainist Help this needs to be answered PLS HELP I DONT KNOW THIS ONE 6. Sam is buying tickets to a movieonline. The price of one ticket is $8.50.An equation showing the total cost isC = 8.50t +3.50 where t is thenumber of tickets and $3.50 is aconvenience fee. What is the total costif he buys 4 tickets? UNIT 6. WILL & BE GOING TOI. Supply the correct verb form: 1. Jack: We need some bread for lunch Ben: Oh, do we? I _____________ (go) to the shop and get some. I feel like a walk Before he goes out, Ben talks to Jane: Ben: I _____________ (get) some bread! Do you want anything from the shop? Jane: Yes, I need some envelopes Ben: Okay, I _____________ (get) some 2. John has to go to the airport to catch a plane. He hasnt got a car. John: Alan, can you take me to the airport this evening? Alan: Of course, I _____________ (take) you. Id be delighted Later that day, Eric offers to take John to the airport Eric: John, do you want me to take you to the airport? John: No, thanks, Eric. Alan _____________ (take) me 3. A: Has George decided what to do when he leaves school? B: Oh, yes. Everything is planned. He _____________ (have) a holiday for a few weeks and then He _____________ (do) a computer programming course 4. You have made an appointment with the dentist for Friday morning Friend: Shall we meet on Friday morning You: I cant on Friday. I _____________ (go) to the dentist 5. A: Did you post that letter for me? B: Oh, Im sorry. I completely forgot. I _____________ (do) it now 6. A: What shall we have for dinner? B: I dont know. I cant make up my mind A: Come on, hurry up! Make a decision! B: Okay then. We _____________ (have) chicken 7. A: The ceiling in this room doesnt look very safe, does it? B: No, It looks as if it _____________ (fall) down 8. A: Can I speak to Marco? B: Hold on, I _____________ (get) him Tommy stands on a diving bored that is 4 feet above the pools surface. He dives and touches the bottom of the pool, which is 12 feet below the pools surface. What is the total length of Tommys dive? The nation that Georgia belongs to: Find the distance between the two points (1.5,2.7) and (3.5,4.3) given in polar coordinates and using radians. Sum of +1 and + 2 What is the amount of heat required to change one mole of a substance from the solid to liquid state known as?Select the correct answer below:A) the enthalpy of fusionB) the melting pointC) the entropy of disorderD) none of the above The children are looking forward to helping their aunts at the h................... t................... what is photograph ?what are the advantage and disadvantage of it. Store employees are handing out coupons. Every 5th customer gets a free bagel coupon. Every 9th customer gets a free drink coupon.Which customer is the first to receive both coupons? look at the image below hannah has $345 in her savings account she wants to icrease that number by 20% Which of the following planets has the strongest winds in the solar system?O JupiterO MarsO NeptuneO Venus