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3 years ago

Draw and label the parts of the eye. State the function of any five parts of the eye.

Biology

1 answer:

Sidana [21]3 years ago

8 0

Answer:

The labeled drawing is attached; I just grabbed an image off of the internet. You can do this by hand by just copying what's in your textbook or other reference materials. Let me define five main parts:

Retina. This is a thin layer of tissue on the back of the eye that receives the signals of light and transfers them to the brain so you can understand them as color and sight.
Cornea. This is the front part, a reflective layer that "refracts" light. What this means is that light doesn't go directly through it, but its path is almost deflected a little.
Sclera. This is the part that looks white from the front. It's a protein covering to your eye, and it's very close to the cornea.
Iris. This is the actually colored part of your eye. If you have hazel or blue eyes, the iris is that portion of the eye. It allows differing amounts of light in.
Pupil. This is the black part of the eye. It's a hole that looks black because of all the light coming through and being absorbed.

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5) Strawberry plant clones are given different amounts of water for a 3-week period. First strawberry plant

Natalka [10]

Answer:

IV: Amount of water

DV: Height of the strawberry plant

CG: The fourth strawberry plant

Con: Type of strawberry plant, type of water given, type of soil used, amont of sunlight.

Explanation:

When you say independent variable this is the variable in a study that you change or manipulate. In this case, the amount of water is the one that is changing per plant. This is done to test whether this variable will have an effect on another.

The dependent variable is the variable that is not changed by the researcher or scientist. The changes in this variable is what you'd like to take note of. The changes that the dependent variable "depends" on the indepedent variable. This means that the dependent variable is the one affected. In this case, it would be the height.

Control Group is the group that you are not going to test with the Independent variable. We do this to determine or rule out any other intervening variables that may cause a change. If the result of the study would be that there is not difference between the other group and the control group, then that would mean that the independent variable may not have had any effect on the dependent variable. Another purpose to a control group is to provide also a baseline to track changes.

Controlled variables are variables that are kept constant. This is also to eliminate or prevent other variables from interfering with the results. It ensures that only the independent variable is what is causing the change. If there were no controls to this particular experiment, you will not be able to properly conclude that it is indeed the amount of water that is causing the change.

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3 years ago

Human behavior is frequently influenced by family and cultural experience resulting in habits and attitudes that began forming i

kotykmax [81]

Answer: The answer is C. Order pizza and popcorn and watch more television as a family night.

Explanation: It’s C because ordering pizza and popcorn will make your diet worse and create even worse habits.

3 0

2 years ago

Does anyone get this plz help this is for a grade tomorrow

Alex777 [14]

She should use as large a sample size as possible because she vets more data. S he also repeat this at least twice to get accurate data

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3 years ago

The evolutionary effects of genetic drift are greatest when _____.

KonstantinChe [14]

Answer: the actual size of the population is relatively small.

Explanation:

In relatively small populations, the phenomenon of genetic drift significantly may change the frequencies of the alleles in that population. This consequently affect the genetic structure of the population in context.

Whereas big populations doesn't significantly feel the shakings of this phenomenon because her effects are small and insignificant.

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3 years ago

If a person with o blood type produces offspring with a person with b blood type, then what percentage of their offspring will b

Marysya12 [62]

Answer:

In humans, blood group is determined by three alleles $I^{A}$ , $I^{B}$ , and $i$ .

$I^{A}$ and $I^{B}$ are co-dominant whereas $i$ is recessive to other two.

Thus, if a person with blood group O produces offspring with blood group B then the other parent must contain $I^{B}$ allele.

The genotype of other person can be $I^{A}I^{B}$ , $I^{B}I^{B}$ , or $I^{B}i$ .

There is only one condition in which the person can have offspring with blood group O that is, when the other parent is $I^{B}i$ .

In this condition, the probability of an offspring to have blood group O is 50%.

In other conditions, the probability of an offspring to have blood O is 0%.

7 0

3 years ago

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