Postzygotic reproductive isolation occurs
a. just after the union of the egg and sperm nuclei.
b. during embryo development.
c. during fetal development.
d. after birth.
e. with any of these.
Answer: e
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Water treatment processes for drinking water
A. are similar to wastewater treatment. B. are only necessary when using recycled water. C. includes disinfection but not filtration. D. has no biological treatment phase.
Genes that are located on the same
chromosome
a. tend to be inherited together. b. will appear together in the gamete. c. are said to be linked. d. may be separated during chromosome pairing and crossing over. e. fit all of these characteristics
Which cancer-causing agent inserts foreign DNA into cells making them cancerous?
a. parasites b. viruses c. mast cells d. radiation e. bacteria
The first evidence of full language capabilities was seen in
A. Homo habilis. B. Neanderthals. C. Homo erectus. D. Cro-Magnons.