A student has several pet hermit crabs. He wants to determine how the hermit crabs choose which shell they inhabit. He thinks that the crabs choose their shells based on the shells' color and wants to design an experiment to test this. Which of these steps should the student include in his experiment? A. He should add shells that are different colors, but the same size and type, to the tank and observe which shells the hermit crabs choose. B. He should observe hermit crabs in their natural environments and determine how shells help protect them from predators. C. He should place the hermit crabs in different tanks and change the temperatures in the tanks to see if it effects their shell selection. D. He should gather shells that are different sizes and different colors, place them in the tank with the hermit crabs, then observe which shells they choose. Reset Next Question

Answers

Answer 1
A. He should add shells that are different colors, but the same size and type, to the tank and observe which shells the hermit crabs choose.

Durning an experiment you need to keep everything the same but only change the certain things based on your theory.
Such as how the student wanted to see if the color attracted the crab. If he had changed the size and type of the shell then the crab would have chosen the bigger one as they tend to grow into larger shells.

Related Questions

The special job an organism plays in it's ecosystem is it's __________.
biome

population

niche

biodiversity

Answers

Answer:

Niche

Explanation:

The role a species plays in the ecosystem is called its niche. A habitat is the physical environment in which a species lives.

Answer:

niche

Explanation:

The role a species plays in the ecosystem is called its niche. A habitat is the physical environment in which a species lives.

design your own, you can use the Browse feature to attach and upload your document. 5. Design your own experiment based on one of your questions from question 1, above. Include the question, hypothesis, independent and dependent variables, and safety precautions. 6. What are three major branches of Earth science?​

Answers

Answer:

three major branches of earth science are Geology, oceanography, meteorology.

what information is copied from DNA to mRNA​

Answers

Answer: transaction

Explanation:

Answer:

Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). DNA safely and stably stores genetic material in the nuclei of cells as a reference, or template.

Explanation:

PLEASE MARK ME AS BRAINLIEST

genetic engineering might allow parent to 'design' their children before birth are you in favor of this? why or why not?​

Answers

Answer:

I think it is quite an interesting idea to allow parents to 'design' their children before birth. Because some people have preferences and those preferences are taken very seriously. I wouldn't want to have a baby boy, I would want a baby girl. Although, this could be a waste of money and time because this might be one of the things that are better not to be fixed even if it isn't broken. But, this can also be good, if you desperately need a child with specific features, this can help. Even if I can't seem to find a reason where a child is supposed to have specific features.

Explanation:

The alteration of the natural gene by the tools is called genetic engineering. The application of genetic engineering is to make transgenic animals that give protein-rich products and transgenic plants which are disease-free.

The idea of genetic engineering is quite subjective. some people find it right and some find it wrong. In order to evolve biological science, genetic engineering is important but ethically and morally genetic engineering is not good as we altering nature's work.

Genetic engineering allows a parent to check the genetic disease of the child and help them to cure it but it is ethically wrong if they used it to find the sexual gender of the child.

Hence, genetic engineering is wrong in a limited way.

For more information, refer to the link:-

https://brainly.com/question/15804584


True or False.
A group of the same species of living things in an area is a population

Answers

Answer:

True.

Explanation:

A population is a group of organisms of the same species that live in the same area at the same time

Answer:

True!

Hope this helps.

Which component of the endomembrane system is responsible for packaging and preparing exist proteins in vesticles?

Answers

Answer: Golgi apparatus

Explanation: The Golgi is responsible for packaging sorting tagging and distribution.

Hope this is helpful :)

Which feature do both roundworms and segmented worms have?

A They are usually microscopic.
B They lack a circulatory system.
C They have setae covering their bodies.
D They have a one-way digestive system.

Answers

Answer:

D

Explanation:

Explain how an animal grows?

Answers

Answer:

big liitle fat

Explanation:

Answer:

The primary way that animals grow and develop is by building more cells. When an animal eats food, its body breaks the food down and uses it to fuel its energy requirements and build new cells through the process of mitosis. These new, or daughter, cells are often similar in size to the old, or parent, cells.

Explanation:

which statement best explains how cellular respiration helps maintain homeostasis in animals

Answers

Answer:

It maintains body temperature by absorbing energy

Explanation:

I hope it will help ☺️☺️

What soil horizon is the most important for the growth of plants (agriculture) ?

Answers

Accumulative

the accumulative or B horizon is the most fundamental part of soil from many standpoint

What is tendonitis?////////////////////////////////////////////////////////

Answers

A condition in which the issue connecting muscle to bone becomes inflamed.

Design your own scenario related to Bacteria or Viruses. Identify the independent and dependent variables.

Answers

Answer:

An experiment where an antibiotic is tested against bacteria. The antibiotic can vary in its concentration for example, different amounts are applied to a sample of bacteria to see if it is affected by the action of the antibiotic and if so, in what concentration. So, the independent variable is the concentration of antibiotic while the dependent variable is the survival (or not) of the bacteria.

Explanation:

An independent variable is a variable that represents a quantity that the scientist modifies in an experiment. A dependent variable represents a quantity whose value depends on how the independent variable is modified. This is the variable being studied and measured.

So, an example of this applied to bacteria or viruses could be:

An experiment where an antibiotic is tested against bacteria. The antibiotic can vary in its concentration, different amounts are applied to a sample of bacteria to see if it is affected by the action of the antibiotic and if so, in what concentration. So, the independent variable is the concentration of antibiotic while the dependent variable is the survival (or not) of the bacteria.

To complete the experiment, an antibiotic whose effect is already known can be used as a positive control. That is, it is already known to kill the bacteria. And as a negative control you can simply use water, which has no effect and is known not to kill the bacteria. In this way, we validate the results and make sure that there is not something else that is affecting the bacteria and that only the antibiotic being studied has an influence.

If a chromosome comes apart because it is not well attached at the center, 1 point
then there is most likely a problem with the

centromere
chromatids
chromatin
gene

Answers

Answer: The most problem is likely with chromatin

Explanation:

If a chromosome comes apart because it is not well attached at the center, The most problem is likely with chromatin.

What is chromosome ?

A chromosome is  a thread-like structure present in the nucleus of cells such as both prokaryotic and eukaryotic cell and it is made of a molecule of DNA (Deoxyribonucleic acid) and histone proteins.

It is composed of three components, DNA, proteins and RNA,  amount of the DNA content ranges from 30 to 40 %, the amount of proteins from 50 to 65%, and small amount of RNA from 1 to 10%.

Two types of protein present in DNA such as histone and non-histones proteins, histone constitute large amount (90% of total protein), whereas non-histone is present in small amount (around 10% of total protein).

The histone protein is basic, whereas, the DNA is acidic, so it can be neutralized; DNA in chromosome  is present in two forms such as Euchromatin and Heterochromatin.

For more details regarding chromosome, visit

brainly.com/question/8240726

#SPJ2

the organism at location D is the to organisms at location A, B, and C

Answers

Answer:

ancestor

Explanation:

Answer:

ancestor

Explanation:

4. Which statement is an example of how
environmental factors affect gene expression?
A. Your finger becomes callus from writing with a
pencil
B. The amounts of sun, water, and nutrients affect the
growth of a plant
C. Parents with red hair have a child with red hair
D. A red snapdragon flower is crossed with a white
snapdragon flower to produce a pink snapdragon flower.

Answers

Answer:

B. The amounts of sun, water, and

nutrients affect the growth of a plant

Explanation:

Gene expression is the way by which the genes of an organism instructs the production of proteins, which are responsible for the organism's phenotype. However, the trait or characteristics possessed by organisms are not strictly or 100% dependent on the genotypic factors but also on the environmental factors.

Environmental factors are the biotic (living) and abiotic (non-living) factors that affect organisms development and growth. An example is how the amount of sun, water, and nutrients, which are all environmental factors, affect the growth of a plant. Growth in plant, therefore, affects gene expression.

PLS HELP I'LL GIVE THE BRAINLEST!!!
The lineage of pea plants produced round seeds for four generations. The plants that fertilized these pea plants also produced round seeds. However, in the fifth generation, the plant produced to two plants with wrinkled seeds. Can that be possible? Explain your answer using your pedigree chart.​

Answers

Answer:

Explanation:

This happened because two fully recessive plants where introduced into the lineage. these plants where paired with the dominate verison. this would make all of the offspring have the two traits. this being said it would make it possible for the offspring to be Wrinkled Seeds.

When two heter0zyg0us individuals are crossed -simple d0minant inheritance-, or a heter0zyg0us individual is crossed with a h0m0zyg0us recessive one, they can produce h0m0zyg0us recessive subjects among the progeny. Heter0zyg0us individuals among the fourth generation got crossed with another plant (h0m0zyg0us recessive or heter0zyg0us) and produced two h0m0zyg0us recessive plants expressing wrinkle seeds.

---------------------------    

The first step is to understand the given information. So,

The first four generations produced round seedsPlants that fertilized these plants also produced round seeds (see generation II)  Among the fifth generation there are two plants with wrinkled seeds

Let us assume that a diallelic gene determines the shape of seeds.

D0minant allele R codes for round seedsRecessive allele r codes for wrinkle seeds

Now, let us analyze the pedigree. According to the information provided here, we can tell that

black figures represent h0m0zyg0us d0minant individuals, grey figures represent heter0zyg0us individualsempty figures represent h0m0zyg0us recessive individuals

Remember that Generations are represented with roman numbers.

We will name the plants with numbers from 1 to 26.

According to the information in the statement and the information in the pedigree, we can say that grey individuals from the fourth generation are heter0zyg0us expressing round seeds. They can produce wrinkle seeds, if they are fertilized by another heter0zyg0us plant or a h0m0zygous recessive one.

Option 1:

Two heter0zyg0us plants are crossed, and their offspring have wrinkled seeds.

Option 2:

One heter0zyg0us plant is crossed with a h0m0zyg0us recessive one, and their offspring have wrinkled seeds. Let us see the cross

Look at the attached files for a better understanding      

---------------------------------

Related link: https://brainly.com/question/2952835?referrer=searchResults

HELPPP PLEASEE literally pleaseeeee

Answers

Answer:

high

Explanation:

you're getting too hot you are starting to sweat

I need help with this. PLEASE HELP IF YOU CAN!!!

Answers

I can’t sorry........

Match each gymnosperm to its correct description. plzzz help me reeee​

Answers

Answer:

Explanation:

Ginkgoes lose their leaves in autumn

Cycads look like a palm tree

Gnetophytes grow in deserts and rain forests

Conifers make up the largest group of gymnosperms.

Each gymnosperm is matched according to their correct description

Ginkgoes lose their leaves in autumnCycads look like a palm treeGnetophytes grow in deserts and rain forestsConifers make up the largest group of gymnosperms.

What are Gymnosperms?

Gymnosperm is a seed-producing plant which do not produce flowers or fruits and have uncovered seeds. These are born in cones and are not visible until maturity.

There are several characteristics of Gymnosperms. They are:

1. They are autotrophic, photosynthetic plants which tend to conserve water.

2. They have vascular system which includes roots, xylem, and phloem that is used for the transportation of water and nutrients.

3. The ovules and seeds of gymnosperms develop on the scales of cones which is in enclosed chambers called ovaries.

4. They are older than angiosperms on the basis of evolution.

They are divided into four classes like

Ginkgoes Cycads Gnetophytes Conifers

Thus, each gymnosperm is matched according to their correct description

Ginkgoes lose their leaves in autumnCycads look like a palm treeGnetophytes grow in deserts and rain forestsConifers make up the largest group of gymnosperms.

Learn more about Gymnosperms, here:

https://brainly.com/question/17194627

#SPJ2

PLZZ HELP IM DOING A UNIT ASSESMENT!!!!
What types of cells would contain cell walls and what types of cells would contain a cell membrane?

Answers

They have walls plants have walls

Answer:

I agree with the other person

have a good day :)

Explanation:

How are rabbits adapted? Write in short.​

Answers

Answer:

The rabbit's eyes are set high on the head, and is complimented with a weak but very flexible neck which allows the animal to rotate its head. These adaptations let the rabbit have a greater field of vision, which helps in spotting food as well as predators. They also have strong legs that are made for running.

Explanation:

Which of the following answers is NOT correct with regard to convection currents?

A. Convection currents in magma drive plate tectonics.

B.Convection currents in magma are a result of density differences.

C. Convection currents play a role in the movement of Earth’s inner core.

D. Convection currents in magma are caused by temperature differences.

Answers

Answer: C....Convection currents play a role in the movement of Earth’s inner core

The statement which is not correct with regard to convection currents is as follows:

Convection currents play a role in the movement of Earth’s inner core.

Thus, the correct option for this question is C.

What is Convection current?

Convection current may be defined as a procedure that significantly involves the movement of energy from one place to another. It is basically the existence of current in a fluid through convection.

The inner core of the earth has appeared as solid as compared to other parts like the crust and mantle. Most liquid particles are definitely found on the mantle of the earth's surface.

Due to the presence of excessive liquid particles and compounds, the convection current is significantly noticed there.

Apart from this, magma is also a fluid that derives current through convection. It produces in a number of ways like magma driving plate tectonics, density differences in the magma, and temperature differences.

Convection currents are basically the movement of fluid with respect to temperature or density difference within the material.

Therefore, the correct option for this question is C.

To learn more about Convection currents, refer to the link:

https://brainly.com/question/10557429

#SPJ6

Which element is so reactive it is found in nature only in compounds?
Group of answer choices

Na (sodium)

Au (gold)

O (oxygen)

Fe (iron)

Answers

Na (sodium), because alkali metals are not found freely in nature due to their high reactivity. (In this group are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr).

2. Create a poster on how one should be careful around animals and avoid animal attack.
Remember, a poster must have
a slogan
b. a picture
a few words​

Answers

This seems easy.. You got this.

Which worm shown is most likely a segmented worm?

Answers

Answer:

phylum Annelida and and leeches

Explanation:

Answer:

B

Explanation:

Which gland is located closest to the human brain?
A The thyroid
B The pituitary
C The adrenal
D The ovaries

Answers

Answer:

B. The pituitary gland

Explanation:

Can't be the ovaries, they're down by the hips!

Can't be adrenal glands, they're on top of the kidneys!

Can't be the thyroid, that's low on the front of the neck or something like that!

It's B, the pituitary; it's on the base of the brain.

Have a great day!

Science cells pls help

Answers

Answer:

sou brasileira bem não posso ajudar ok

Complete a Punnett square for the cross-pollination of a female (TT) and a male (Tt). Write in the correct answers to complete the square.

Answers

first row: T, T

first column: T, t

row 2, column 2: TT

row 2, column 3: TT

row 3, column 2: Tt

row 3, column 3: Tt

it doesn't matter whether you put the female (TT) in the first row or the male (Tt) in the first row. you can interchange those positions.

i hope this helps! have a great day :)


Where would you least
likely find a new
volcano?
A. Mid-ocean ridge
B. "Hot spot" in Hawaii
C. The great plains in the middle
of the U.S.
D. Near a subduction zone in
Argentina
Secon2015
I NEED TO KNOW ASAP

Answers

Answer:

A. Mid-ocean ridge. I'm not sure if I'm right.

The place where the new volcanoes are less likely to be seen is mid-ocean ridge. The correct option is A.

What is volcano?

A volcano is a crack in the crust of a planet, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber beneath the surface.

Volcanoes are most commonly found where tectonic plates are diverging or converging on Earth, and the majority are found underwater.

Although Australia is the only continent with no active volcanoes, it does have one of the world's largest extinct volcanoes, the Tweed Volcano.

Volcanism is directly related to plate tectonics theory. Volcanoes are only found at specific types of plate boundaries, and only rarely in the middle of ocean plates.

Thus, the correct option is A.

For more details regarding volcanoes, visit:

https://brainly.com/question/12945128

#SPJ2

pls ans this qa i will mark u as brainlist ans​

Answers

ans b

Explanation:

milk teeth are less than permanent teeth

Other Questions
Andrew has 1/2 of his assignment left to do. He has three days left to complete it. If he divides up the work evenly over the three days. what fraction of the work should he complete each day to finish on time? Trail of tears what statement Which of the following is the definition of person versus supernatural conflict? Select one:conflict that involves the struggle between the character and Godexternal conflict that involves a struggle, mental or physical, between two characters in the storyconflict that involves a struggle between the character and the elements of earth that are beyond his/her controlexternal conflict that involves the struggles between a character the rules or laws that govern the place in which he/she lives At the end of the play, what does oedipus want creon to do? houghtQ Identifythethe wdwe willthenmynee by everingadverbs the sentences belowtogothe park quicklymother gently reminded me to study.astronauteasilysolved the problemsayare Adverbs or Adiectives .waye)TheRude peoplethank younevera Cadmium has eight naturally occurring isotopes. What do the isotopes have in common?A.atomic massB.mass numberC.number of protonsD.number of neutrons Point M is located at (7,1).What is located 5 units from point M?Choose 1 answer:(Choice A)Point A(Choice B)Point B(Choice C)Point C(Choice D)Origin #3Elizabeth takes her younger siblings to the fair. She spends a total of$40. She buys 3 entrance tickets for $8.00 each, and 8 bags of popcorn.What is the price per bag of popcorn? (type just the whole number below What are the four main examples of tyranny and submission in Iran? 3. DIALOGUEYoung people have differing views on the right age to get married and havechildrenWrite a dialogue between two friends who have opposing views on the topic.[25] What is the height of a trapezoid whose bases have lengths of 11 units and 18 units and whose area is 87 square units?its eitherQuestion 1 options:5 units,3 units, or 6 units Carbon monoxide is a colorless, odorless gas that binds irreversibly to hemoglobin in our blood, causing suffocation and death. CO is formed during incomplete combustion of carbon. One way to represent this equilibrium is: CO(g)C(s) 1/2 O2(g) We could also write this reaction three other ways, listed below. The equilibrium constants for all of the reactions are related. Write the equilibrium constant for each new reaction in terms of K, the equilibrium constant for the reaction above. in a pack of 24 balloons, 3/4 are blue or green, how many of the balloons are blue or green? which category of birds can find food on both land and large body of water help!!!!!!!!!!!!!!!! Plz Solve Will Mark Brainliest and No Stealing Points Or Will ReportPart 2 If you are technically savvy, know about equipment and how to use it, you areA. knowledgeable B.affluent C.stable D.reservedPLEASE HURRY!!! DON'T GIVE WRONG ANSWERS PLEASE A local natural market employs 80 people. It expands this year and needs to hire 10% more people. How many people will work at the market after they hire the new people?Answers:A. 98B. 90C. 81D. 88 The Hiking Club is on a trip to hike up a mountain. The members increased their elevation 290 feet during their hikethis morning. Now they are at an elevation of 450 feet.a. Explain how to find their elevation before the hike.b. Han says the equation e + 290 = 450 describes the situation.What does the variable e represent?C. Han says that he can rewrite his equation ase = 450 + -290 to solve for e. Compare Han's strategy to yourstrategy for finding the beginning elevation. 6(-5x - 16) = 30y + 84