Newborn kittens bump their heads deliberately into their mother's belly and then almost immediately start drinking the milk that is released. This bumping stimulation likely causes secretion of: a. estrogen.
b. parathyroid hormone.
c. luteinizing hormone.
d. ADH.
e. oxytocin.

Apea plant that is heterozygous for the tall phenotype can produce short offspring when self pollinating. which of the following explains why this occurs? a. segregation of allels b. condominance of traits c. polygenic expression of traits d. independent assortment of alleles

What is the key to the recognition of codominance?

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes