Imagine that you wish to compare two different diets that will be fed to tadpoles raised in a lab. One diet is a meat-based fish food, and the other is the traditional diet of boiled lettuce. You want to see if the meat-based diet will be associated with an increase in the average weight of the tadpoles. In your experiment you keep all other factors, such as tadpole density per pan, temperature, pH, and the amount of food the same. The only difference between your control and experimental groups is the type of food the tadpoles receive.
Which is a good hypothesis for this tadpole experiment?
A. Tadpoles will be larger if the ph is higher.
B. Tadpole size will be unpredictable if fed a meat-based diet.
C. Tadpoles will be larger if fed a meat-based diet.
D. Tadpoles fed a meat-based diet will be bigger , but only in a tank with low numbers.

Answers

Answer 1

Answer:

The correct answer is - C. Tadpoles will be larger if fed a meat-based diet.

Explanation:

In this experiment, it is observed that how the change in the type of diet if meat diet is internalized how the average weight of tadpoles increase comparatively than other types of diet.

In this experiment, pH remains the same so that can there would be no effect on this by a change in pH can be established by this experiment. The dependent variable is the increase in size so the correct hypothesis will be - C.


Related Questions

Which evidence in the diagram above indicates that a gas was
produced as a result of the reaction?

Answers

Answer:

the balloon

Explanation:

Compare Law of Conservation of energy and Law of Conservation of matter?

Answers

Answer:

Conservation of energy, principle of physics according to which the energy of interacting bodies or particles in a closed system remains constant. The first kind of energy to be recognized was kinetic energy, or energy of motion. In certain particle collisions, called elastic, the sum of the kinetic energy of the particles before collision is equal to the sum of the kinetic energy.

Explanation:

Super saturated solutions are used to make rock candy. Please describe how the crystals are formed, be sure to use the terms Solute and Solvent.

Answers

Answer:

Once the solution cools, it now has more solute than it normally could have, and this is called a supersaturated solution. Once a solution becomes supersaturated, it wants to crystallize the excess solute. The solute will form crystals on any surface. In our case the surface is a string, and we are using a lifesaver candy as our “seed.”

Explanation:

Rock candy is a type of candy made by growing sugar crystals on a string or stick.

Why are Super saturated solutions used?

Super saturated solutions are often used to make rock candy because they contain more solute (sugar) than the solvent (water) can normally dissolve at a given temperature.

The first step in making rock candy is to heat water in a saucepan and add sugar to it. The sugar dissolves and forms a solution as the water heats up. After that, the solution is heated until it is completely saturated.

This occurs because the super saturated solution is unstable, and the excess solute (sugar) in the solution wants to escape and form crystals.

As time passes, more sugar dissolves from the solution and adheres to the crystals on the string or stick, causing them to grow larger.

The process is repeated until the crystals reach the desired size or until all of the excess solute has been removed from the solution.

Thus, preparing a super saturated solution of sugar and water, then dipping a string or stick into the solution and allowing the excess solute to come out of the solution and form crystals on the string or stick, is the process of making rock candy.

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After a skeletal muscle fiber is treated with a membrane permeable drug that speeds up the action of the SR Ca 2-ATPase, how would contraction differ after multiple and frequent action potentials

Answers

Answer:

the twitch would be shorter

Explanation:

In muscle cells, the calcium (Ca2+) pump ATPase membrane transport proteins maintain a low cytosolic Ca2+ concentration in order to promote muscle contraction. Muscle relaxation occurs when the sarcoplasmic reticulum reabsorbs Ca2+ through the Ca2+-ATPase protein, thereby reducing intramuscular Ca2+ levels. In muscle contraction, intracellular Ca2+ levels are raised due to the release of Ca2+ from the sarcoplasmic reticulum (SR) via Ca2+-release channels. In consequence, it is expected that a specific drug that speeds up the action of (Ca2+) pump ATPase protein should shorten the contraction-relaxation cycle by increasing the velocity of muscle relaxation.

what is a nucleic acid that contains the genetic information for heredity in most organisms.

Answers

Answer:

  deoxyribonucleic acid   Or ( DNA)

Explanation:

DNA contains the genetic information for heredity in most organisms.

Have a wonderful Day!

Answer:

there's all the answers

Explanation:

During exercise, epinephrine and norepinephrine are released from the adrenal medulla. Epinephrine and norepinephrine have the same effect on plasma glucose levels as glucagon. Explain how epinephrine and norepinephrine affect plasma glucose and why this is important during exercise.

Answers

Answer and explanation:

Epinephrine and norepinephrine are two hormones that are released from the adrenal medulla when the body is under stress (like during exercise, for example) as a part of the sympathetic response.

These hormones have many functions and they all work together to prepare the individual for a fight or flight response - like increasing heart rate and producing bronchodilatation. One of these functions is the rise of glucose levels in blood which is important for this substance to reach several tissues, like the skeletal muscle. The skeletal muscle will make use of this glucose to produce ATP and generate the required energy for muscle contraction through a process called glycolysis, which is key for the fight or flight response mentioned above.

When we exercise, glucose levels rise thanks to these hormones so the skeletal muscle can have enough energy to contract and move as we want. If the exercise is too intense or prolongued, glucose levels will drop and other fuels will be needed to sustain this activity, like stored glycogen and fat.

What happens when light hits the pigment in photosystem II?

A. It alters the shape of the photosystem II, allowing the light to pass into the thylakoids.

B. It sets off a reaction that releases water molecules into the inner space of the thylakoids.

C. It alters the shape of the photosystem II protein, releasing the water-splitting enzyme.

D. It sets off a reaction that moves energy through the proteins of the thylakoids membrane.

Answers

Answer: D

Explanation:

When a photon hit photosystem II, light energy absorbed by one of the pigments in photosystem II, energy is carried from one pigment to another and reach down to the reaction center.

Answer:

It sets off a reaction that moves energy through the proteins of the thylakoids membrane.

Explanation:

Ape-x

How are meiosis and mitosis different?

Answers

Explanation:

mitosis results in two identical cells while meiosis results in four sex cells.

mitosis:prophase is short,meiosis: prophase is longer.

mitosis: daughter cells are genetically identical,meiosis:daughter cells are genetically different.

Answer:

meiosis and mitosis different by:

in mitosis Daughter cells are genetically identical

whereas in meiosis Daughter cells are genetically different

1. Why is diversity important in maintaining the stability of an ecosystem?
2. What is the broadest level of ecological classification within the biosphere?
What are the major abiotic factors used to characterize them?
3. What is the importance of plants in the ecosystem?

Answers

Answer:

if the ecosystem has a diverse range of species, it is more likely to stay safe against any virus that arises. That’s why biodiversity is important to ecosystems because it protects the environment from extreme conditions. Even if some species fail to survive, others will remain to sustain the ecosystem and the living things.

Explanation:

hope this helps

What is marine habitat and its characteristics​

Answers

Refer to the attachment

Hope it helps you

DIFFERENT POPULATIONS ALONG WITH THEIR PHYSICAL ENVIRONMENT FORM:
A- ECOLOGY
B-ECOSYSTEM
C- COMMUNITY
D- POPULATING

Answers

Answer:

A- ECOLOGY

Explanation:

Ecology is the study of how organisms interact with one another and with their physical environment.

The distribution and abundance of organisms on Earth is shaped by both biotic, living-organism-related, and abiotic, nonliving or physical, factors.

Ecology is studied at many levels, including organism, population, community, ecosystem, and biosphere.

Do you think websites such as ancestry and 23andme should have databases that are not allowed to be used by law
enforcement or insurance companies, and be 100% private? Currently, they can be used without any restrictions. Explain your answer.

Answers

Answer:

its a risky thing to do but i wouldnt say illegal .. like ciggarattes,, they bad bit not ILLEGAL

Explanation:

you dont know who really has your DNA sampled or what they doing with it .. thats the risky pary

BUT this a good question

Explain how fossils, glaciers and magnetic pole wandering provide evidence that supports the theory of
plate tectonics.

Answers

Some fossils from the same species are found in different continents, across sea, these species could not swim so big distances, so it suggests that once the continents were joint and species could walk from America to Africa and other continents.

Grooves and rock deposits left by ancient glaciers are found today on different continents very close to the equator, it suggests that the glaciers either formed in the middle of the ocean and/or covered most of the Earth. Today glaciers only form on land and nearer the poles, it can be suggested that glaciers were centered over the southern land mass close to the South Pole and the continents moved to their present positions afterwards.

Polar wandering is the movement of the magnetic poles over Earth’s surface through geologic time. It suggests that plates move.

The Gondwana continents  glaciation could only have occurred if the continents were joined together since the centres of the glaciers would have been in the ocean if they were not. Also, the continents, such as South America and Africa are similar with jigsaw puzzle.

What plate tectonics theory?

The plate tectonics theory states that the earth is solid outer crust, the lithosphere, is segregated into plates which further move over the asthenosphere, the melted upper portion of the mantle. Oceanic and continental plates come and joined together, spread apart, and interact at boundaries all over the planet.

Similar fossil plant and animals are segregated by oceans leading to the assumption that they must have lived in adjacent regions when they were alive. Finally, similar rock sequences and mountain ranges could be connected across oceans.

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What is the interaction between science and technology

Answers

Science contributes to technology in at least six ways , new knowledge which serves as a direct source of ideas for new technological possibilities.

7.
What is a community?
populations that live and interact in the same area
10096
individuals of the same species that live in different areas
to
individuals of the same species that live in the same area
90%
populations that live in similar environments around the world

Answers

Answer:

individuals of the same species that live in the same area

Which of the following is false of the integumentary system?

Answers

Answer:

si

Explanation:

Yo saber Inglés poco jsksjsk

Answer:

a. Keratin is the pigment responsible for skin color

Explanation:

keratenocytes produce keratin the gives skin strenght flexabilty and waterproofs the skin molacytes produce melain that colors the skin

sinh sản ancistrustemminckii

Answers

ANSWER :

Ancistrus is a genus of nocturnal freshwater fish in the family Loricariidae of order Siluriformes, ... Historically, commonly available species of Ancistrus were Ancistrus cirrhosus and Ancistrus temminckii; other species are now available, though .

Explanation:

Hope it helps

Which is an example of a cardiovascular disease? a. Flu b. Strep throat c. Arteriosclerosis d. Common cold

Answers

Answer: C

Explanation:

The A locus and the D locus are so tightly linked that no recombination is ever observed between them. If Ad/Ad is crossed with aD/aD and the F1 is intercrossed, what phenotypes will be seen in the F2 and in what proportions

Answers

Answer:

F2: 1/4 phenotype Ad (genotype Ad/Ad), 1/2 phenotype AD (genotype Ad/aD): 1/4 phenotype aD (genotype aD/aD)

Explanation:

In this case, A and D loci are strongly linked and there is little or no recombination between them. Therefore, Ad/Ad and aD/aD individuals will produce only one type of gametes (i.e., individuals Ad/Ad only can produce Ad gametes, while aD/aD individuals only can produce aD gametes), thereby all F1 will be Ad/ aD. Finally, Ad/aD individuals can produce two types of gametes: Ad and aD, thereby the F2 will be 1/4 Ad/Ad (phenotype Ad), 1/2 Ad/aD (phenotype AD) and 1/4 aD/aD (phenotype aD)  

Parental cross:   Ad/Ad x aD/aD

F1 generation:  Ad/aD

F2 generation:        

                Ad            aD

Ad         Ad/Ad       Ad/aD

aD         Ad/aD       aD/aD

F2 generation: 1/4 Ad/Ad (phenotype Ad), 1/2 Ad/aD (phenotype AD) and 1/4 aD/aD (phenotype aD)

Use Figure 12.1 and the information here to answer the following questions. The unlettered circle shows a diploid nucleus with four chromosomes. There are two pairs of homologous chromosomes, one long and the other short. One haploid set is symbolized as black and the other haploid set is gray. The chromosomes in the unlettered circle have not yet replicated. Choose the correct chromosomal conditions for the following stages.

Which process formed the cell at A?

a.) meiosis I

b.) meiosis II

c.) anaphase

d.) mitosis

Answers

Answer:

If I am not wrong then the correct answer from my thinking is c.anaphase

what are the role of enzymes in germination of seed​

Answers

Answer:

Enzymes such as amylase, protease, and lipase are liable for solubilizing spare food material in the form of starch, protein and lipid correspondingly in seed and deliver energy and other fundamentals food material to germinating embryo.

Explanation:

hope this helps you

Most typically, the order in which the steps of scientific investigation are applied is:

a. Controlled experiment, hypothesis, analysis of results, observations, questions,
conclusions
b. Observations, controlled experiment, hypothesis, analysis of results, conclusions,
questions
c. Questions, observations, hypothesis, controlled experiment, analysis of results,
conclusions
d. Questions, observations, analysis of results, controlled experiment, conclusions,
hypothesis

Answers

Answer:

C

Explanation:

explain why the use of blood type for peternity testing is not conclusive​

Answers

Answer:

Although blood group studies cannot be used to prove paternity, they can provide unequivocal evidence that a male is not the father of a particular child. Since the red cell antigens are inherited as dominant traits, a child cannot have a blood group antigen that is not present in one or both parents.

hope it helps

Explanation:

Although blood group studies cannot be used to prove paternity, they can provide unequivocal evidence that a male is not the father of a particular child. Since the red cell antigens are inherited as dominant traits, a child cannot have a blood group antigen that is not present in one or both parents.

what macromolecule should he load up on during dinner to ensure that he has enough energy for the big game?

Answers

Answer:

Carbohydrates and protein are typically the two macromolecules that are used depending on the type of sport.

Explanation:

In order to be classified as a green plant, an organism should be eukaryotic, have double-membraned chloroplasts, cell walls, and go through the process of _______.

Answers

Answer:

photosynthesis

Explanation:

plants are the only living organisms that can prepare their own food

1pt Which organism gets energy from another organism?
O A. an oak tree
O B. algae
O C. a mushroom
OD. a rabbit

Answers

Answer:

algae

Explanation:

I think it’s b bc I did this in class and i got it right

how do organisms reproduce asexually

Answers

Answer:

my cloning all the type of cells the animal has

Explanation:

Hey I don’t understand this can someone help?

Answers

It is true...............

Answer is True.

if you search in website "Electromagnetic Wave" The same picture will pop up

to participate in conservation efforts.
It is important for
a. government
b. business
C. citizens
d.
all of the above
Please select the best answer from the choices provided
Ο O O O O

Answers

Answer:

d

Explanation:

Which of the following statements is true?

The spongy layer doesn't have any chlorophyll.
The epidermis is the main location for photosynthesis.
The cuticle slows down the loss of water in a leaf.
Plants can make food without chlorophyll.

Answers

false statement: the cuticle slows down the loss of water in a leaf.

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