The mark and recapture method was used to estimate a certain population of fish. Twenty fish were captured and marked. They were released, and then a second sample of the population was collected. In the second sample, 100 fish were captured and of those fish, 5 were marked. What is the size of the population?

During a class on evolution one of your fellow students remarks, “The giraffe stretched its neck while reaching for higher leaves; its offspring inherited longer necks as a result.” How would you correct your fellow student’s misconception? 

Shivering and warming up flight muscles are both examples of __________.

In what year of the war did the British burn Washington D.C.?

A person is heterozygous for an autosomal dominant condition.  If this person has children with someone who is homozygous dominant, which statement is correct?

Compare and contrast ectotherms and endotherms. Include a definition and an example animal of each category as well as similarities an differences between them.

When conditions favor intermediate phenotypes and extreme phenotypes are disadvantaged as in human birth weights ____ selection occurs.

Who did NOT run for president in the election of 1796?

In certain cattle, hair color can be red (homozygous RR), white (homozygous rr), or roan (a mixture of red and white hairs, heterozygous Rr).  When a red bull is mated to a white cow, what phenotypes of offspring could be obtained?

Darwin realized that most species produce many more offspring than is necessary to maintain a constant population.  What is the fate of the excess individuals?