Parental support of offspring is an example of
a. artificial selection.
b. kin selection.
c. natural selection.
d. negative selection.
e. stabilizing selection.
Answer: b
You might also like to view...
Which cells are produced during meiosis I?
a. spermatogonia b. primary spermatocytes c. secondary spermatocytes d. spermatids e. sperm
Once a chromosomal position for a putative gene associated with Parkinson disease is verified, which of the following is a next step?
A) developing a FISH screening test to identify pre-Parkinson patients B) determining whether this locus is mutated in all Parkinson patients C) using a genome-wide linkage SNP panel to identify more minor genes D) ascertaining all living and at-risk individuals who are family members of the affected test subjects E) fine mapping of the linkage region to identify particular variants for influencing risk
Which of the following terms describes NO3- ? NO2- ? N2O ? N2?
A) ammonification B) denitrification C) nitrification D) nitrogen fixation E) anaerobic respiration
Answer the following questions true (T) or false (F)
1. Cleavage and gastrulation take place in animals such as humans and birds but not in frogs. 2. Early vertebrate embryos share a general similarity in shape in the period following somite development. 3. Cells first arrange themselves into layers during organogenesis.