The diagram below shows inbreeding between ________, which over time could lower the fitness of the population. This lowering of fitness because of inbreeding is called ________. 
A. siblings; genetic drift
B. siblings; sexual selection
C. cousins; genetic drift
D. cousins; inbreeding depression
E. siblings; inbreeding depression
Answer: D
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Many genes are expressed when embryonic stem cells differentiate into muscle. This population of RNAs present in these cells would be called the ______________
Fill in the blanks with correct word
To create a multicellular eukaryotic transgenic organism, a researcher
A) introduces foreign DNA into a fertilized ovum. B) injects a gene of interest into a somatic cell. C) injects a gene of interest into several somatic cells. D) introduces foreign DNA into somatic cells in culture and transplants them.
Which of the following structures all contain valves?
a. arteries and veins b. arteries and heart c. arteries, capillaries, heart d. lymph capillaries, arteries, heart e. lymph capillaries, veins, heart
What role has cultural evolution played in human success? What, if any, biological adaptations support this use of culture?
What will be an ideal response?