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2 years ago

Name the organisms of each trophic level of the food webThe diagram showing aquatic food web

Biology

1 answer:

ExtremeBDS [4]2 years ago

4 0

Answer:

plankton- producer

krill- primary consumer

squid, penguin- secondary consumer

blue whale, seal, seagull- tertiary consumer

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Explain how myopia and hyperopia are related to the lens focusing on the retina.

liq [111]

Answer:

In myopia the image is focused ahead of the retina. While in Hyperopia the image is focused beyond or behind the retina.

Explanation:

I'll start by defining the two key terms, Myopia and Hyperopia. Myopia is otherwise called short-sightedness. It is a condition where one cannot see the images of objects located far away from the eyes and tend to see images within a short distance from the eyes. Hyperopia on the otherhand is otherwise known as long-sightedness. It is an eye defect which manifests by one not seeing objects close to the eyes instead he or she see only objects far from the eyes. These two eye defects are a malfunction of the accomodation feature of the eye.

Normally when an object is viewed all the parts of the eye (the organ for vision) function to focus the image of that object on the retina but especially on a part of it called the *light spot*. This then translates the image to the brain using the optical nerve. The brain then interpretes what is being viewed

However in Myopia, images are focused ahead of the retina . This is as a result of the eyeball being too long in relation to the focusing power of the cornea and eye lens.

In Hyperopia on the other hand, images are focused behind the retina. This is by the diameter of the eye being too short or the cornea being too flat.

In conclusion, from the above stated points,it is glaring that Myopia and Hyperopia affect the lens's ability to focus images on the retina.

4 0

3 years ago

What two factors determine the shape of a protein

liubo4ka [24]

Determined by its primary structure (sequence of amino acids.)

the sequence of amino acids in an protein is determined by the nucleotides in the DNA encoding it

8 0

3 years ago

Read 2 more answers

Where can you find dendrites plants or animal cells

OLEGan [10]

Pretty sure it’s animal

8 0

3 years ago

Read 2 more answers

1. What conclusions can you draw about the results of your first cross between a homozygous red bull (RR) and a heterozygous re

rusak2 [61]

1. The conclusion that can be made about the results of your first cross between a homozygous red bull (RR) and a heterozygous red cow (Rr) is shown below :
You supposed to make a punnet square, so (picture)
Than you will get that the first generation will be 50% homozygous dominant
and 50% heterozygous which lead us to conclusion :
Crossing results in 50% (dominant homozygote) and 50% (dominant heterozygote).

2. Conclusion about the results of your second cross between a heterozygous red bull (Rr) and a heterozygous red cow (Rr) is shown in the second picture. And you can see that in 25% (dominant homozygote), 50% (dominant heterozygote) and 25% (homozygous recessive).

3. Conclusion about the results of your third cross between a homozygous white bull (rr) and a homozygous white cow (rr) are shown in the third picture. In this case you can see the result of 100% (homozygous recessive).

3 0

3 years ago

Isovolumetric relaxation and ventricular filling (two phases of the cardiac cycle) take place during __________. Isovolumetric r

Helga [31]

Answer:

Option B, ventricular diastole

Explanation:

Ventricular diastole also termed as ventricular relaxation consists of two phases. In the first phase, the following set of events takes place –

a) Relaxation of ventricle muscles

b) Reduction in pressure of blood within the ventricles

c) As this reduced blood pressure gets lower than that of pressure with in the pulmonary trunk and aorta, blood starts flowing back towards the heart.

d) A small dip in the blood pressure is observed at this stage

e) Volume at this stage remains constant as the atrioventricular valves remain closed

f) This phase is known as isovolumic ventricular relaxation phase

In the second phase, the following set of events takes place –

a) Relaxation of ventricular muscle

b) Dropping of pressure of the blood within the ventricles lower than that of pressure of blood in the atria

c) Blood starts flowing from atria into the ventricles thereby opening the tricuspid and mitral valves

d) Both the heart chambers chambers are in diastole,

e) Atrioventricular valves are open

f) Semilunar valves remain closed

Hence, option B is correct

3 0

3 years ago

Name the organisms of each trophic level of the food web​The diagram showing aquatic food web

Name the organisms of each trophic level of the food webThe diagram showing aquatic food web