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End of Chapter Quiz
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1
If the offspring are genetically similar but are not identical to each other and the parent, then the organism reproduces through
A)parthenogenesis.
B)sexual reproduction.
C)budding.
D)fission.
2
For terrestrial vertebrates, dehydration was a selection pressure that caused the evolution of
A)parthenogenesis.
B)external fertilization.
C)budding.
D)internal fertilization.
3
Dogs show
A)viviparity.
B)ovoviviparity.
C)oviparity.
D)parthenogenesis.
4
Temperature regulation of spermatogenesis in human males is controlled by the position of the
A)seminiferous tubules.
B)epididymis.
C)vas deferens.
D)scrotum.
5
Gametogenesis in human males and females requires the hormones
A)estrogen and testosterone.
B)FSH and LH.
C)progesterone and testosterone.
D)oxytocin and prolactin.
6
When pregnancy occurs, the endometrium is maintained by the
A)embryo releasing hCG.
B)decrease in levels of progesterone.
C)hypothalamus releasing GnRH.
D)increasing levels of FSH.
7
Initiation of labor and childbirth is controlled by the hormone
A)estrogen.
B)prolactin.
C)oxytocin.
D)progesterone.
8
A human embryo has formed the three germ layers from which all tissues form by the time
A)the blastula forms.
B)neurulation is complete.
C)the blastocyst forms.
D)the gastrula is complete.
9
In a developing human, the first tissues to begin forming are the
A)skeletal.
B)muscular.
C)nervous.
D)digestive.
10
Childbirth before the third trimester is dangerous for a human baby because the
A)respiratory system is not fully formed.
B)circulatory system is not fully formed.
C)digestive system is not fully formed.
D)excretory system is not fully formed.





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