A chemical produced in growing tips of plants is called a (n):

A. cell

B. vitamin

C. protein

D. auxin

When hydrogen bonds form between water molecules, water evaporates condenses

Also located on the X chromosome of a cat is a gene that codes for deafness. This gene is recessive. A black female cat that is heterozygous for deafness (Dd) is crossed with a orange male cat that is not deaf. Show the cross.

What can be assumed about a parent cell if. after asexual reproduction the daughter cell has 24 chromosome??

All organisms are composed of cells. the size and shape of a cell determines how well it can deliver nutrients to its interior.

Proteins that act as biological catalysts are called

Gametogenesis is the term for a. the fertilization of eggs. b. the development of polar bodies. c. the movement of sperm. d. the production of gametes.

Why is glucose needed for cellular respiration?

Which type of galaxy probably started as a different shape and then changed over time

Why do scientist publish their work

In pea plants, the allele for purple flowers (p) is dominant to the allele for white flowers (p). in a cross between a purple-flowered plant and a white-flowered plant, all 73 of the offspring plants had purple flowers.