Why ovulation does not occur when the uterine lining is not at it's thickest?

Discuss the functions of epithelial connective nerviud and muscular tissues

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.

We all have different forms of genes from our parent(s).what are these different forms called? a.alleles b.characters c.dna d.resources