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harina [27]
3 years ago
14

Changes in the size of ___ help regulate the amount of light wntwring the inner areas of the eye

Biology
1 answer:
Masteriza [31]3 years ago
7 0
Retina allows the eye to regulate how much lint can enter.
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Compare renewable and nonrenewable energy sources, and discuss the effects of each on biodiversity.
kiruha [24]

Answer:

Nonrenewable energy resources, like coal, nuclear, oil, and natural gas, are available in limited supplies. This is usually due to the long time it takes for them to be replenished. Renewable resources are replenished naturally and over relatively short periods of time.

5 0
2 years ago
What is the biological significance of the temperature at which the amylase
kati45 [8]

Answer & explanation:

Amylase is part of enzymes, a group of large peptide molecules (formed by amino acids) whose role is to catalyze reactions in order to facilitate the synthesis of other biological molecules.

Amylase is found mainly in saliva (in the form of salivary amylase, or ptialin), acting in the breakdown of starch and glycogen in foods, reducing them to smaller particles, facilitating their digestion and absorption.

The action of enzymes depends on certain specific conditions, called optimal conditions. In the case of <u>amylase</u>, it depends on an optimum pH of 7 (neutral) and an optimum temperature of approximately 37 ° C.

This enzyme can still act between 35 ° C and 40 ° C, but below 35 ° C it is inactivated, preventing its functions from being performed, and above 40 ° C it suffers denaturation, causing changes in its structures.

Thus, it is concluded that the <u>temperature</u> (under optimal conditions) is important for enzymes because it keeps their actions and structures in proper operation.

3 0
3 years ago
What is the amount of heat energy needed to raise the temperature of
34kurt

Answer:

25116 J

Explanation:

Q  =  m  ×  c  × ΔT

c = 4.186 J/g°C

M=200 g

So,

Q = 200  ×  4.186 × (40-10)

=200 ×  4.186 × 30

=25116 J

7 0
2 years ago
Which of the following best explains why most chemical reactions proceed more quickly when the concentrations of reactants are i
MatroZZZ [7]
I'm guessing the answer would be A.
6 0
3 years ago
Read 2 more answers
List whether the following is an example of anatomy or physiology. A. Look at the microscopic structure of a tumor. B. Measuring
il63 [147K]

Answer:

. A. Look at the microscopic structure of a tumor. = Anatomy

B.Measuring respiratory rate during sleep.= Physiology

C. Measuring blood pressure during exercise.  = Physiology

D. Observe a lesion to see if the border is irregular. = Anatomy

Explanation:

6 0
3 years ago
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