The Red Queen hypothesis is named by paleontologist Leigh Van Valen for the Red Queen whom Alice meets in Lewis Carroll's Through the Looking-Glass. What is the analogy?
A. Species who are at the top of a hierarchy (queens) have more resources than those at the bottom (peasants)
B. For two species that are in conflict, each species has to run (i.e., evolve) as fast as possible just to stay in the same place (survive)
C. You have to outrun your competitors in order to "win" and become "queen"
Answer: B. For two species that are in conflict, each species has to run (i.e., evolve) as fast as possible just to stay in the same place (survive)
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Consider an organism whose karyotype shows it to have a total of 60 chromosomes. How many chromosomes would be contained in the sperm of this organism?
A. 23 B. 30 C. 46 D. 60 E. 90
Evolution at the genomic level involves changes in
A. chromosome structure and number. B. sequences of amino acids in proteins. C. sequences of nucleotides in RNA molecules. D. incorporation of new organelles such as the mitochondrion. E. DNA and histone relationships.
The oldest mammals were large, dinosaur-like creatures that flourished over 600 million years ago.
Answer the following statement true (T) or false (F)
A bundle of muscle cells is called a(n) ________
Fill in the blank(s) with correct word