________ allows mother pinnipeds to adjust the time of pregnancy of less than 1 year to an annual time frame
a. A gestation period
b. Polygny
c. Seasonal delayed implantation
d. Lactation
c
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The competitive exclusion principle states that _____
A) it is not possible for two species with the same niche to coexist in the same region B) it is not possible for two species to compete for the same resources C) two species with different niches will not compete for the same resources D) two species with the same niche will constantly be competing for resources
In the formation of recombinant DNA, what enzyme is needed to seal the sticky ends of genes into plasmids or chromosomes?
A. Primase B. DNA ligase C. DNA helicase D. DNA polymerase I E. DNA polymerase II
The condition known as acid reflux occurs when the lower esophageal sphincter malfunctions
Indicate whether the statement is true or false
A prophage is an early stage in the
A) lytic cycle. B) lysogenic cycle. C) development of an animal virus. D) folding of a prion.