How many amino acids are there

Which characteristic of life relies on the sun? A. using energy B. cell structure C. adaptation D. reproduction

Which organelle modifies proteins before they are either used by the cell or transported out of the cell?

A population of cottontail rabbits feeds on grass located at the bottom of a cliff. A loose boulder at the top falls and kills a large portion of the rabbit population randomly.

Tall pea plants are dominant over short pea plants. Can a short pea plant ever be produced from crossing two tall pea plants? a. No, only short pea plants can produce short pea plants because it is a recessive trait b.

To create bacteria that produce human insulin, scientists insert the human gene of interest into the bacterial A. cell membrane B. cell wall C. plasmid D. circular chromosome

Brown (B) is dominant to blue (b). BB X bb gives what percent offspring having brown eyes?

What are the basic function of fermentation?

In plants that undergo double fertilization, the structure that forms to nourish the seed is called the a. endosperm. b. egg cell. c. gamete. d. cone.

Definition of Homeostastis

You can eat as many empty calories as you want during the day because they do not count towards your daily totals. a. True b. False