Four of the five answers listed below are terms describing haploid cells. Select the exception
a. ovum
b. primary spermatocyte
c. spermatid
d. polar body
e. secondary spermatocyte
B
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True or False: Intrasexual selection includes physical competition among males, whereas intersexual selection involves advertisement displays
A. true B. false
About half of all miscarriages are caused by ____
a. chromosomal abnormalities b. alcohol use during pregnancy c. cleft palate d. tobacco use during pregnancy e. illegal drug use during pregnancy
Reptiles resemble __________ in being able to
__________. a. ray-finned fishes; freely leave the water b. birds; breathe by use of lungs c. ostracoderms; utilize their jaws d. amphibians; exchange gases across their skin e. lobe-finned fishes; exchange gases across their gills
DNA replication is considered
a. random. b. the same as base pair subsitituion. c. conservative. d. heritable. e. semiconservative.