SOLVE Suppose you are helping scientists conduct a study of a population of Clear Lake
hitch, which is a fish species that lives in Californian lakes. The scientists initially capture
80 hitch from a lake and tag all of them. After 30 days, they capture 100 hitch and count
20 tags. Use the space below to calculate the estimated number of hitch in the lake. Show
your work

Answer:

Feathers perform a number of functions for a bird:

1) They provide insulation, body temperature of most birds is maintained at around 40 C.

2) Feathers allow for flight.

3) Feathers control what a bird looks like by supplying the bird with colors.

Explanation:

Feathers insulate birds from water and cold temperatures. They may also be plucked to line the nest and provide insulation to the eggs and young. The individual feathers in the wings and tail play important roles in controlling flight. Some species have a crest of feathers on their heads.

Feathers perform some of the functions for a fowl: 1) They offer insulation, the frame temperature of maximum birds is maintained at around 40 C; 2) Feathers allow for flight; 3) Feathers manage what a chook looks as if by way of imparting the chicken with hues.

Feathers permit birds to fly, but they also assist them to show off, combining in, living warm, and preserving dry. A few feathers advanced as specialized air foil wing-like shape that produces elevate and drag because of their actions via the air for efficient flight.

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Answer:

It's the picture of the dolphins tale or fin, whatever it's called.

In this case answer B.

Explanation:

The leaf isn't used for motion.

The tail is moved up and down etc.. and creates motion that helps the dolphin swim.

The apple isn't used for motion.

The wolf's eye is used for sight, not motion.

Thus the answer is picture B.

The structure that is most likely used for motion is the tail fin of the fish. The correct option is B.

Motion is changing or modifying an object when applying a force. The living body move or locomote with the locomotion organ. These are different types of locomotion organs in different organs.

There are different organs in different animals for locomotion and motion. In humans there are legs, in animals there are paws and in fishes, there are fins, in insects, there are wings and legs.

There is no movement made by the leaf. The dolphin swims with the assistance of its tail, which is moved up and down and in other directions. It is not used to move the apple. The wolf's eye is for sight alone, not for movement.

Thus, the correct option is B. the tail fin of the fish.

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Reducing gene flow causes speciation because the species are not allowed to exchange genetic material.

When gene flow is blocked from exchanging between populations, this results in speciation that prevents the populations of the same species to exchange genetic material.

So we can conclude that reducing gene flow causes speciation because the species are not allowed to exchange genetic material.

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Answer:

Dry air is a mechanical mixture of nitrogen, oxygen, argon and several other gases in minor amounts.

Explanation:

Trees in the rainforest are so tall because they compete for sunlight. Hope this helps!

Answer:

It’s competition for sunlight. Trees in a dense forest are often tall and thin, as each tree is trying to reach sunlight.

Explanation:

Answer:

a non testable question can be, what is better, chips or ice cream?

Explanation:

Answer:

Yes

Explanation: The more layers, the more water it absorbs.

Answer:

Proteins

Explanation:

Biomolecules are any organic molecule, meaning they contain carbon and they are produced by cells in living organisms, and they generally aid in the functioning of that living cell. The four major types of biomolecules are carbohydrates, lipids, nucleic acids, and proteins.

Proteins are large biomolecules, as they are also macromolecules.

Proteins are responsible for cellular functions and regulation of the body's tissues and organs.

When we talk about providing structure for healing, then proteins fit perfectly as collagen works on quick healing while immunoglobulin is an example of a protein that fights of harmful organisms.

Ferritin, Hemoglobin is an example of a protein that transports essential molecules from one part of the body to a target organ or destination.

Insulin for example is a protein that sends signals to target organs and is considered very important.

Answer:

evaporate, bend, melt, dissolve

Explanation:

Which is a part of interphase?

A. Telophase

B. S phase

C. Anaphase

D. Cytokinesis

Answer:

S phase

Answer:

Explanation:

The independent and the dependent variables are the two principal factors needed in an experiment.

• Manipulated variable: Refers to all the variables in an experiment that provoke a response in another variable. They are also known as independent variables. The independent variable changes or is controlled and modified in the experiment to analyze how the other variable responds to it. The researcher can change it to see what changes it implies in an object, process, trait, or anything that depends on them, to study its effects on the dependent variable. Usually, the independent variable is represented by the X letter. In the exposed example, the researcher manipulates the water given to the plants.  One plant receives water that has been microwaved and the other plant receives regular tap water.

• Responding variable: Refers to the dependant variable. The dependent variable is the one that is being investigated, studied, and measured. It represents a quantity of something which value depends on how the independent variable is modified. A change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. It is usually identified by the letter Y.  In the exposed example, the dependent variable is the height of each plant after 2 weeks of treatment.

• Controlled variable: Refers to those variables in an experiment that are controlled and have no influence on the results. These variables do not affect the change in the dependent variable values. In the exposed example these are the light and pots.

Answer:

water given to the plants

height of each plant

Explanation:

Answer:

is this land consistently like this?

what is the annual precipitation rate?

hiw many animals live here?

Explanation:

these are the kinds of questions asked

Answer:

Viruses are not made out of cells, they can't keep themselves in a stable state and they can't make their own energy therefore no.

Explanation:

Answer:

no Viruses are considered to be nonliving

Explanation:

Viruses resemble organisms because they can multiply. They are different because they are not alive: they are not cells, they do not use their own energy to grow or respond to their surroundings.

Answer:

they do have skeleton which is called exoskeleton, main component is chitin

Fiddler crabs don't have a skeleton. Instead, they occupy a carapace, a rectangular shell. As they expand, the carapace is absorbed, and a new, larger one is produced.

The paraphyletic group of animals known as invertebrates lacks the notochord-derived vertebral column and does not even develop one. Except for the chordate subphylum, all animals fall within this classification.

To assist remove food from sand, they frequently dine in a watery puddle. Because both of a female's claws are little, she has an advantage over a male in terms of finding and consuming food. Feeding is more challenging for older males due of their main claw.

Therefore, fiddler crabs don't have a skeleton.

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The correct option associated with the question is given as follows:

a.All macromolecules are monomers.

b.All macromolecules are polymers made up of smaller units.

c.All macromolecules are created by dehydration reactions.

d.All macromolecules contain carbon.

Answer:

The correct answer is: a. All macromolecules are monomers.

Explanation:

Macromolecules are huge biological molecules made out of thousands of covalently associated atoms. Carbohydrates, lipids, proteins, and nucleic acids are altogether macromolecules. Macromolecules are framed by numerous monomers connecting together, shaping a polymer.  

In doing such, monomers discharge water atoms as side products. This kind of reaction is called dehydration reaction, which signifies "to assemble while losing water."  

lipids are worked from an alternate arrangement of monomers that look like each other in creation and size. Lipids are not polymers, since they are not made up of monomers.

Answer: Grasses grow and reproduce quickly. They take over the landscape. Over time, these plants improve the soil and a few shrubs can begin to grow.

Answer:

See the answer below

Explanation:

It was important for Pasteur to place the broth in the flasks before heating rather than transferring it to new flasks after heating because the new flasks might be a source of contaminants in the form of microorganisms, hence, leading to a biased outcome.

In order to prevent cross-contamination and preserve the integrity of the outcome of the experiment, the broth needed to be placed in the flasks before heating instead of transferring it after heating.

Answer:

Hope this helps.

Explanation:

Agriculture is the largest use of water worldwide. A large percentage of water used by agriculture is consumptive water, meaning that the water does not get returned to its source.

Answer and Explanation:

The criteria for maintaining a Hardy-Weinberg equilibrium are:  

If one of these points does not carry out, then the population under study is not in equilibrium.

Then the observed allelic and genotypic frequencies are different from the expected ones if the population under study was in H-W equilibrium.

Answer:

A, C, E

Explanation:

I got it right on edgenuity. This is the only parts that match the process of scientific inquiry.

10 , 3 , 27

add the 5 and the 5 because they are going the same direction.

subtract the 7 from the 10 since they are in opposing directions.

subtract the 12 from the 39 since they are in opposing directions.

Answer:

lions hunt and capture a zebra

Explanation:

in this instance hunting = forging

Answer:

Cell is the structural and functional unit of life. It contains special parts called cell organelles, which have definite structures and functions.

Hope it helps :)

Answer:

Photosynthesis

Explanation:

Hope this helps you ☺️

If yes then do mark my answer as brainliest

Answer:

B) they might not show variable relationships that are not actually cause and effect.

Answer:

the correct answer is  

-they might not show variable relationships that are not actually cause and effect.

Explanation:

Answer:

These cleaning products are no more effective at ... you use antibacterial or antimicrobial cleaning products, ... households do not need antibacterial cleaning products.

Explanation:

Answer:

Decomposers and scavengers break down dead plants and animals. They also break down the waste (poop) of other organisms. Decomposers are very important for any ecosystem. If they weren't in the ecosystem, the plants would not get essential nutrients, and dead matter and waste would pile up.

Explanation: