Natural selection act directly upon <u>Alleles</u>
Explanation:
Genes, such as that of fur color, have many variants called alleles. Natural selection act on the alleles and chooses the best fit for an environment and eliminates the disadvantageous ones from the population over generations. Mutations are a rare occurrence that increases the number of allelic variants of a genes on which natural selection can act upon.
The answer is D
Because it is kinda basic
The piano could only be played with 12 fingers, which is rare because humans normally have ten fingers.
Answer:
carbohydrate like glucose, fructose, sucrose
they are either ketones or aldehyde
they can be of single. unit or made up of multiple units
carbohydrates are also called sugars because some are sweet and in daily life used as seeetner
what they do in body is provide fuel to body to carry out processes, helps in formation of atp and atp is used as energy currency
body doesn't let sugar come out of blood into urine
if its coming in urine we call it glucosuria
u may have diabetes if urine has glucose and protiens