Icant figure this out what so ever. lol. unlike nonsteroid hormones, steroid hormones a. bind to receptors on the outside of cell membranes. b. enter the nucleus and change gene expression in a target cell. c. include proteins and modified amino acids. d. can't pass through cell membranes.

2. in dragons, a gene on chromosome 1 codes for wing color and a gene on chromosome 2 codes for body color. draw out the stages of meiosis for these two chromosomes from a dragon that is heterozygous for both traits. define your alleles. what are all the possible allele combinations of the gametes produced?

What is the problem in this article? what solution does the article propose?

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone