In a series of field experiments, David Tilman and colleagues investigated biodiversity and ecosystem function. They found a relationship between

The cladogram below shows the evolutionary relationships (left to right) of lancelet, lamprey, salmon, lizard, and rabbit. Which of the following is a shared derived character of the salmon, lizard, and rabbit?

GGG and GGC are codons for the amino acid, glycine. A mutation caused the insertion of a cytosine in place of the third guanine during DNA replication. Over many generations the DNA changes so that the frequency of GGC is similar to that of GGG. What effect does this mutation have on the population’s mean fitness?

Evolution, viewed on a small scale, as it relates to changes in a single gene or allele frequency in a population over time, is called __________.

The ultimate source of energy for reactions in a plant is __________.

What is produced during the citric acid cycle?

Community ecology is best defined as the study of

The coefficient of relatedness of a human child to its full sibling is, on average,

Communal courting areas are called

In birds, when females choose males based on their coloration, this is an example of