Astudent is measuring the effect of different temperatures on the effect of enzymes in biological systems. what temperature ranges
should she use?
(c is celsius)
a. 25 c, 30 c, 35 c, 40 c, 45 c
b. 91 c,92 c, 94 c,97 c, 101 c
c. 25 c, 30 c, 35 c, 45 c , 55 c
d .91 c,93 c, 95 c, 97 c, 99 c

A. 25 °C, 30 °C, 35 °C, 40 °C, 45 °C  

Explanation:

Each enzyme has a temperature at which it works best. In humans and many animals, that temperature is around body temperature (37 °C or 98.6 °F). Most enzymes are denatured and work poorly at 40 °C (104 °F).

That automatically eliminates Option B.

I would pick a temperature close to 37 °C (98.6 °F) and temperatures at intervals above and below that.

Option D is wrong because it includes no temperatures above body temperature.

Option C is wrong, because it includes temperatures of 45 °C and 55 °C, at which the enzymes will be denatured.

That leaves Option A as the best answer. It includes only one temperature above 40 °C.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.