Teratogens affect the ____ more than any other part of the fetal body

A parent has a genotype of RrYy. What is the probability of this individual producing a gamete with the RY genotype?

a. 1/2 b. 1/4 c. 3/4 d. 1/8 e. 0

The biological basis of autism may be

A) exposure to Ebola viruses during pregnancy. B) formation of aberrant synapses. C) interference with the ability to form synapses during childhood that are a response to experience, impairing learning and memory. D) binding to nicotinic receptors in a way that destroys neurons in the hippocampus.

The pattern of locomotion used by gibbons and siamangs, where they use their arms to hang below

branches and swing forward, is called

a. bipedal movement. b. peristalsis. c. gliding. d. brachiation. e. orthokinesis.

Which of these adaptation(s) is (are) unique to

mammals? a. hair or fur b. four types of upper and lower teeth that match up c. sweat glands d. secretion of milk by females e. all of these