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Answer 1

Answer:

she should experiment the hypothesis made by using a different specie in the same vase and record the changes over time

Answer 2

Answer:

A. She should repeat the experiment with the same type of flower and photograph the changes over time.


Related Questions

1.What factors define aquatic ecosystems?

Answers

Answer:

In other words, physical or chemical parts of the environment that affect the organisms that are in that environment.

Explanation:

For aquatic ecosystems, these factors include light levels, water flow rate, temperature, dissolved oxygen, acidity (pH), salinity and depth. Light level is an important factor in aquatic ecosystems. hope this helps you :) god loves you :)

Light level is an important factor in aquatic ecosystems.

The physical or chemical parts of the environment that affect the organisms that are in that environment.

What is aquatic ecosystem?

An aquatic ecosystem is a water-based environment. Abiotic factors are the non-living components that form the environment in which organisms subsist in a current.

The main abiotic factors in the marine environment are as; light, temperature, salinity, and hydrostatic pressure. dissolved oxygen, acidity (pH), salinity and depth.

Here Without pollution or acid rain, most lakes and streams would have a pH level of around 6.5.

Therefore Light level is an important factor in aquatic ecosystems.

Learn more about aquatic ecosystems here;

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brain is considered as the centre of all senses, why ?

Answers

Answer:

the brain transfers and receives all signals from different parts of the body and controls what we do. it stimulates all our moves.

if something we touch is hot the brain will receive signals from the sensory cells in the skin, it'll tell us to move away, we'll move our hand away as a reaction.

Explanation:


which of the following is not irrational number?
(1)√2
(2)2/√6
(3)√36/1296
(4)-√6+6

Answers

Explanation:

hi !!

here i think all areirrational expect root 36/1296,

1. root 2= root 2= 1.414213562

2. 2/root 6= root 6 /3 = 0.8164965809

3. root 36/1296=1/6=1.66666667

4. - root 6+6= -2 root 3 = -3.464101615

so, they are extended and dont have exact value so all are irrational expect no. 3 because it can be expressed in 1/6 fraction form but others will come on root form.

Hope it helps...

Answer:

[tex]\frac{\sqrt{36} }{1296}[/tex]

Explanation:

[tex]\sf A \ rational \ number \ can \ be \ expressed \ as \ a \ quotient \ of \ two \ whole \ integers.[/tex]

[tex]\sqrt{2} = 1.41421356237...[/tex]

[tex]\frac{2}{\sqrt{6} } = 0.816497...[/tex]

[tex]\frac{\sqrt{36} }{1296} =\frac{6}{1296} =\frac{1}{216}[/tex]

[tex]-\sqrt{6} +6= 3.55051...[/tex]

[tex]\sf The \ rational \ number \ from \ the \ list \ is \ \frac{\sqrt{36} }{1296}[/tex]

In prokaryotes that carry out aerobic respiration, the ________ serves the same purpose as the inner mitochondrial membrane and the ________ serves the same purpose as the mitochondrial matrix. In prokaryotes that carry out aerobic respiration, the ________ serves the same purpose as the inner mitochondrial membrane and the ________ serves the same purpose as the mitochondrial matrix. plasma membrane; cytoplasm cytoplasm; cell wall ribosomes; plasma membrane cytoplasm; nucleoid cytoplasm; plasma membrane

Answers

Answer:

In prokaryotes that carry out aerobic respiration, the plasma membrane serves the same purpose as the inner mitochondrial membrane and the cytoplasm serves the same purpose as the mitochondrial matrix.

I'm sorry! I only know those two. I hope this helps anyway!

Identify the error in the following statement: “Photosynthesis is a chemical
reaction that takes place in the chloroplasts of green plant cells, where chemical
energy is used to convert carbon dioxide and water into glucose and oxygen."
A. No errors
B. "water" and "oxygen" should be switched
C. "chemical" should be "light"
D. "chloroplasts" should be "mitochondria"

Answers

Answer:

It is 'C'

Explanation:

The chemical reaction that occurs in the chloroplast is:

6CO₂ + 6H₂O → C6H₁₂O₆ + 6O₂

The electromagnetic energy of sunlight is converted to chemical energy in the chlorophyll-containing cells of photosynthetic organisms. The granum stores the photon particles from light and converts its energy into chemical energy to convert carbon and water into glucose and oxygen.

Answer:

c

Explanation:

Find the average of 124, 456, 788, 343. Write it as the closest whole number

Answers

Average =
(124+456+788+343) / 4
= 1711 / 4
= 427.75
= 428

Which cycle is represented in this image?

Answers

Answer:

it is clearly the oxygen cycle

Answer:

ofrfr

Explanation:

Many male birds will expend A great deal of energy building nests. Females will mate with the males who build the best nest. This is best described as an example of ___.

a) natural selection
b) sexual selection
c) runaway selection
d) an invasive species
e) disruptive selection

Answers

Answer:

B

Explanation:

Female birds mate with the males who build the best nest is the example of option b. sexual selection.

Sexual selection is a mode of natural selection in which one sex members choose the mate with the member of the other sex for mating.

These members of the biological sex prefer opposite sex members for species-specific characteristics in individuals of the other sex such as best building nest in birds. Other male birds compete with members of the same sex to get selected by members of the female birds in this instance.

Thus, the correct answer is option b. sexual selection as female birds prefers species-specific traits to select their mating partner by best nest building by males.

Learn more about sexual selection:

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1. The Hawaiian Islands are examples of islands that formed over a hotspot. Based on this information, which of the following processes formed the Hawaiian Islands? (2 points) Melted rock called magma rose through holes in Earth's crust and gradually solidified as it cooled. Tectonic movement forced certain segments of Earth's crust downward and other segments upward in jagged chunks. One tectonic plate moved beneath another plate at a subduction zone, causing the rock to melt and rise above Earth's surface. Segments of Earth's crust bent and doubled over, and moving wind and water gradually shaped the rock into gently sloping domes.

Answers

Answer:

The correct answer is -  Melted rock called magma rose through holes in Earth's crust and gradually solidified as it cooled.

Explanation:

The Hawaiian Islands are the chain of eight major islands situated in U.S. of Hawaii. These are formed over a hot spot. About 75 million years ago such hotspot took place in the center of the Pacific Plate.

There are hot spot due to the volconic activity and in the moving over the tectonic plate of a subduction zone. Volcanic activity and overriding of plates that cause rising magma by melting the moving down plates whice leads to volcanic arcs formation. The magma that rose gradually cooled down and become solid over the time. It is an example of a large seamount and island chain created by hot-spot volcanism.

Thus, The correct answer is - Melted rock called magma rose through holes in Earth's crust and gradually solidified as it cooled.

The lac operon in Escherichia coli Group of answer choices promotes the expression of lactose-utilizing enzymes when lactose is absent from the environment. prevents lactose-utilizing enzymes from being expressed when lactose is absent from the environment. prevents lactose intolerance. prevents lactose-utilizing enzymes from being expressed when lactose is present in the environment.

Answers

Answer:

The correct answer is - prevents lactose-utilizing enzymes from being expressed when lactose is absent from the environment.

Explanation:

The lac operon or the lactose operon is a operon that is essential for the many bacteria like Escherichia coli for metabolism and transport of the lactose.

In the presence of the lactose in the environment of the cell the lac genes are expressed due to the isomer of of lactose called allolactose binds to the Lac repressor protein and do not allow to bind it to lac operator. But in the absence of the lactose, the lactose utilizing enzymes are not expressed  due to repressor bind to the lac operator and prevents the binding of RNA polymerase to the promoter.

Consider the following chromosomes and if they are affected by hemophilia. X - unaffected X chromosome, x = X affected by hemophilia, and Y = Y chromosome. If an Xx female and XY male have children, what fraction of their offspring will have an affected chromosome, and what fraction is likely to be affected by the hemophilia? (1 point) A. 1/4 and 1/2 B. 1/2 and 1/4 C. 1/2 and 1/3 D. 1/4 and 1/4 Ive been stuck on this for a while now, can someone please assist?

Answers

Answer:

B. 1/2 and 1/4

Explanation:

Hemophilia is a disease inherited in humans. It is only carried on the X chromosome, hence, it is said to be X-linked. In this question;

X - unaffected X chromosome

x = X chromosome affected by hemophilia,

Y = Y chromosome

Hence, in a cross between a Xx female (carrier) and a XY male (unaffected), the following chromosomes will be present in the gametes produced by each parent:

Xx- X and x gametes

XY- X and Y gametes

Using these gametes in a punnet square (see attached image), offsprings with genotypes: XX, Xx, XY and xY are produced.

XX (1) - unaffected normal female

Xx (1) - unaffected carrier female

XY (1) - unaffected normal male

xY (1) - affected male

Based on the questions;

- 2 out of the possible 4 children have the affected chromosomes i.e. both xY son and Xx daughter have the x chromosome. Hence, the fraction is 1/2

- 1 out of the 4 possible children is affected by hemophilia, which is the xY son. Hence, the fraction is 1/4.

Answer:

1/2 and 1/4

Explanation:

Took the test

Consider a system in which low levels of protein "Q" triggers production of hormone A. The reaction of target cells of hormone A is to produce and release hormone B, which stimulates production of hormone C. In response to hormone C, the target cells up-regulate protein Q. In this scenario we see an example of _____.

Answers

Answer:

Negative feedback

Explanation:

Negative feedback is produced when a mechanism is amplified through an inverse loop, which tends to reduce the fluctuations in the system. In this case, the negative feedback mechanism represents a homeostatic response of the body where the release of a target hormone (hormone C) decreases in response to the increase of a protein (protein Q) upstream in the signaling pathway. Therefore, in this scenario, it is expected that negative feedback causes a decrease in hormone function.

what is the si unit of energy​

Answers

Answer:

Joule

Explanation:

Answer:

- the Joule (J)

Explanation: The Si unit of energy is the same as the unit of work. In slightly more fundamental terms, 1 joule is equal to 1 newton metre and, in terms of SI base units.

50 POINTS In your own words, describe the connection between the heat from earth’s core and the movement of tectonic plates.

Answers

Answer:

ert

Explanation:

Motor vehicles move, use energy and produce carbon dioxide and water. similar characteristics occur in living organisms yet motor vehicles are not classified as living. list the other characteristics of living that do not occur in motor vehicles

Answers

Explanation:

Motor vehicles don't

#produce; 

#grow;

#Respond to stimuli/ irritability;

The characteristics of living that a motor vehicle lacks include the ability to feed, respond to stimuli, grow, reproduce, and die.

Living organisms carry out nutrition, unlike motor vehicles.

Living organisms are able to respond to external stimuli but motor vehicles cannot.

Living organisms are able to grow/increase in size, motor vehicles have fixed sizes.

Living organisms have the capacity to reproduce for continuity, motor vehicles lack this ability.

After some time, living organisms die, motor vehicles do not die naturally.

More on the characteristics of living things can be found here: https://brainly.com/question/280237?referrer=searchResults

All of the following statements about NAD are true except: Group of answer choices NAD is reduced to NADH during both glycolysis and the Krebs cycle. NAD has more chemical energy than NADH. NAD is reduced by the action of enzymes. NAD can receive electrons for use in chemiosmosis. NAD can be recycled many times.

Answers

Answer:

"NAD has more chemical energy than NADH" is the FALSE statement.

Explanation:

It is totally true that NAD can be recycled many times, it can actually receive electrons for use in chemiosmosis and is reduced by the action of enzymed. During both glycolysis and the Krebs cycle. All these statements are true. But when it comes to NAD and NADH, it is false that NAD has more chemical energy than NADH. There is actually more energy in one NADH, that can lose electrons to transfer energy.

If the study on the relationship between W. bancrofti and Wolbachia is correct, then combined with the results of the trials, significant numbers of microfilariae do not survive in circulation beyond what time period

Answers

Answer:

6 months

Explanation:

First, we must remember that doxycline has an effect only on nematodes, but it cannot effectively prevent microfilariae presented before treatment in the blood of the infected. What we can conclude from this is that it is possible that microfilariae grow and develop, however they will not be able to reproduce, since W. bancrofti is completely dependent on Wolbachia for replication. With that, the microfilariae are running out of time and with about 6 months the patients are free of any trace of microfilariae. So we can conclude that 6 months is the longest time that microfilariae survive in circulation.

The proximal convoluted tubule is A. lined with epithelial cells that lack microvilli. B. the site of glucose and amino acid reabsorption. C. permeable to water if ADH is present. D. impermeable to water. E. the site of water secretion.

Answers

Answer:

The correct answer is - option B.

Explanation:

The proximal convoluted tubule or PCT is the the part of nephron that lies in between of loop of Henle and bowman's capsule. The PCT is responsible for the most amount reabsorption of sodium, glucose, amino acids, water, potassium and chloride and reabsorbs around 65% to 100% of filtered substance.

Epithelial cells in the PCT reabsorb substances that have nutritional importance by the numerous microvilli on their surface.

Thus, the correct answer is - option B.



Choose all the answers that apply.

Rapid burial _____.

increases exposure to oxygen
decreases exposure to oxygen
slows down the rate of decay
prevents scavengers from eating organism remains





















































































































































































































Answers

Answer:Organisms decompose more quickly when they are in contact with oxygen. Most environments exposed to the open air are in contact with plenty of oxygen, so the soft tissues of dead organisms, whether plants or animals, decay quickly. ... For an organism to become a fossil, it must not decompose or be eaten.

Explanation:

what are the different types of waste? and what are the methods used in biodegrable waste managment​

Answers

2 ypes of waste liquid and solid

Explanation:

biodegradable waste can be found in municipal soild waste or sometimes called biodegradable municipal waste ,or as green waste ,food waste,paper waste and biodegradable plastic.other biodegradable waste include human waste ,manure,sewage,sewage sludge and slaughterhouse waste .

you can send it for recycling into compost.

you can treat biodegradable waste on an industrial scale by either composting or anaerobic digestion.

composting is more suitable for fibrous materials.

anaerobic digestion is more suitable for wastes and sludgest that degrade easily.

What percentage of the Earth's surface do forests cover? 20% 30% 40% 10%

Answers

30% of the earth's surface is covered by forests.

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Mendel always got close to a 9:3:3:1 ratio for phenotypes in the F2 generation of any dihybrid cross. If false, make it a correct statement

a. True
b. False

Answers

Answer:

True

Explanation:

It is true that Mendel always got close to a 9:3:3:1 ratio for phenotypes in the F2 generation of any dihybrid cross. This validates his law of independent assortment of genes.

The 9:3:3:1 is usually gotten from any dihybrid cross of F2 generation. The results given are always 9 offsprings containing dominant traits, 3 offsprings each which possess a dominant and recessive trait and 1 offspring with a recessive trait.

please help asap
Which statement describes the damage that results from earthquakes?
A: Amount of damage can be used to determine intensity.
B: Damage can be measured using the Richter scale.
C: The amount of damage increases as magnitude decreases.
D: Earthquakes that cause maximum damage are the most common.

Answers

Answer:

option c is correct

Explanation:

The statement that describes result from the activities of Earthquake is C: : The amount of damage increases as magnitude decreases.

An earthquake can be regarded as outcome of  release of stored energy , which is released suddenly into the Earth's crust and as a result of this  seismic waves  is created.Earthquake do occur by displacement of the ground or by shaking the Earth's surface, Some of other results of earthquakes are;damage to bridgescause tsunamisinitiation of slope failuresloss of life However, as the earthquake is in action and as the damages increase, then there would be a decrease in it's magnitude.

Therefore, option C is right because as its magnitude decrease, then the damage will increase.

Learn from : https://brainly.com/question/9899150?referrer=searchResults

what is the meaning of Alkaline medium in life processes ​

Answers

Answer:

an alkali also can be defined as a base that dissolves in water. a solution of soluble base has a pH greater than 7.0. the adjective alkaline is commonly, an alkalescent less often, used in English as a synonym for basic, especially for bases soluble in water.

Which of the following is found in the 'rungs' of a DNA strand?
A. Uracil
B. Thymine
C. Deoxy Ribose
D. Phosphate

Answers

Answer:

Thymine

Explanation:

please please help!!

Answers

Answer:

First peak which touches the A line

Why did the author think e-skin could make better hearing aids? In your answer, explain how the ears connect to the nervous system

Answers

Answer:

The author thought this because e-skin might hold promise for use in soft, wearable hearing aids. Unlike conventional aids, soft devices are more comfortable because they mold to human skin. When the ear receives sound vibrations, there are hair cells in the cochlea that vibrate and translate the sounds into electrical signals. These electrical signals are transmitted to the auditory nerve, which transmits the information to the brain.

Answer:

Sound is one of the five major senses. The nervous system carries sound signals from sensory receptors to the brain. E-skin has many sensory receptors that can carry signals toward the brain, enabling us to react to sounds. Because e-skin is soft, scientists can use it to make effective hearing aids that are quite comfortable to wear.

Explanation:

do not copy it, this is the exact answer from Edmentum

(this means it right)

a student hypothesized that pillar coral eat and digest zooxanthellae. which of these observations would cause the student to change this hypothesis

Answers

Answer:

the zooxanthellae in a pillar coral's body are alive

What adaptation allows the Artic fox to survive in its environment?

Answers

Answer: Arctic foxes have several adaptations that allow them to survive. Their round, compact bodies minimize surface area that is exposed to the cold air. Their muzzle, ears, and legs are short, which also conserves heat.

Explanation:

In science when writing an explanation what must include

Answers

Answer:

Our scientific explanation framework consists of four components: (1) claim, (2) evidence, (3) reasoning,1 and (4) rebuttal.

Explanation

Other Questions
In one state, a mortgagee holds legal title to real property offered as collateral for a loan, and the mortgagor retains the rights of possession and use. If the borrower defaults, the lender is entitled to immediate possession and rents. This state can be BEST characterized as what kind of state Which type of context is the writer in this scenario most directly concernedwith?Becca must write the step-by-step procedures forundocking a yacht, but the terminology is hard to explain topeople who have never sailed a day in their lives.O A. AudienceB. OrganizationO C. PurposeO D. Genre As a Caucasian in the United States, being reasonably sure you will be dealing with authority figures that are of the same race as you is a result of: Please help me!! I'll give brainliest btw A sinusoidal electromagnetic wave is propagating in a vacuum in the +z-direction. If at a particular instant and at a certain point in space the electric field is in the +x-direction and has a magnitude of 4.00 V/m, what is the magnitude of the magnetic field of the wave at this same point in space and instant in time? Despite constitutional power limits, the national government possesses many tools for controlling the actions of the states through fiscal means. Describe some of the ways, and include devolution, cooperative federalism, and dual federalism. Match each political leader to the correct Latin American country. A child is trying to throw a ball over a fence. She gives the ball an initial speed of 8.0 m/s at an angle of 40 above the horizontal. The ball leaves her hand 1.0 m above the ground and the fence is 2.0 m high. The ball just clears the fence while still traveling upwards and experiences no significant air resistance. How far is the child from the fence? Top managers of are alarmed by their operating losses. They are considering dropping the laminate flooring product line. Company accountants have prepared the following analysis to help make this decision:Total Blue-Ray Discs DVD DiscsSales Revenue $432,000 $305,000 $127,000 Variable Costs $246,000 $150,000 $96,000Contribution Margin $186,000 $155,000 $31,000Fixed Costs: Manufacturing $128,000 $71,000 $57,000Selling and Administrative $67,000 $52,000 $15,000Total Fixed Costs $195,000 $123,000 $72,000Operating Income (loss) $(9000) $32,000 $(41,000)Total fixed costs will not change if the company stops selling DVDs.Required:a. Prepare a differential analysis to show whether Movie Street should drop the DVD product line.b. Will dropping DVDs add $41,000 to the operating income? Explain. Two investment advisors are comparing performance. Advisor A averaged a 20% return with a portfolio beta of 1.5 and Advisor B averaged a 15% return with a portfolio beta of 1.2. If the T-bill rate was 5% and the market return during the period was 13%, which advisor was the better stock picker? Wo commondities A and B cost 070 and D80 respewith 26 kg of B and the mixture issold at 085 per kg: caloThe weight (in kg) of 50 contenstants at a competition is65 66 67 66 64 66 65 63 65 6864 62 66 64 67 65 64 66 65 6765 67 66 64 65 64 66 65 64 6566 65 64 65 63 63 67 65 63 6466 64 68 65 63 65 64 67 66 64a. construct a frequency table for the discrete datab. calculate, correct to 2 decimal places, themean,ii. standard deviation of the data Please answer this question now You purchased 1,000 shares of stock in Natural Chicken Wings, Inc., at a price of $43.37 per share. Since you purchased the stock, you have received dividends of $.95 per share. Today, you sold your stock at a price of $46.62 per share. What was your total percentage return on this investment? What is the yintercept of the line that passes through the point (4,9)and is parallel to the line y=12x+2? What are all of the properties of kites? This is an inquiry comprised within the means of 'high school' 'geometry'. Which relation is a function? {(4, 6), (3, 2), (1, 2), (1, 0)} {(2, 12), (2, 0), (2, 4), (2, 11)} {(0,1), (0, 2), (1, 2), (1, 3)} {(8, 1), (4, 1), (0,1), (15, 1)} I thought in the third shell there are 18 electrons, but why are they gaining only 2 electrons?? Pls tell me... I have exam tomorrow.... hat is the solution of the system of equations?y = 3x 43y = 9x + 12 what equation accurately represent this statement three less than 4 times a number is less than 12 -3=n/2-6 help pleaseeee!!!!