Q: What functional units of chromosomes determine specific characteristics by coding for specific proteins? Choices: - chromosomes - DNA - cells - genes A:
genes

(Question)
Q: What forces the fetus out of the uterus? Choices: - biological clock - delayed childbirth - deep breathing - continuous strong contractions A:
(Answer)
continuous strong contractions

Ques: Q: What do you call the patterns and groups of stars in the sky that ancient people observed and made stories about? Choices: - planets - meteors - asteroid fields - constellations A:
Ans: constellations

(Q).
Q: What system is the spinal cord related to? Choices: - circulatory system - lymphatic system - digestive system - nervous system A:
(A).
nervous system

Ques:Q: Of the three types of skeleton designs - hydrostatic skeletons, exoskeletons, and endoskeletons - which do humans possess? Choices: - none of the above - hydrostatic skeleton - exoskeleton - endoskeleton A:

Ans:endoskeleton

Ques: Q: What does interspecific competition between species often lead to? Choices: - evolution - symbiosis - immigration - extinction A:
Ans:
extinction