You are the research scientist charged with finding life on Mars. What would you look for?

1.water
2.something that creates energy
3.nutrients
4.something that uses energy, grows, and reproduces


4

Biology & Microbiology

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What is a possible explanation for why a population may not be in Hardy-Weinberg equilibrium?

A. There are more than two alleles for a trait. B. One allele for a trait is fixed in the population. C. Evolution is occurring on a trait in the population. D. Hardy-Weinberg does not work for all traits. E. The alleles for a trait being examined exhibit incomplete dominance.

Biology & Microbiology

Biochemical tests are no longer very important for the identification of enteric bacteria.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which of the following is not considered a plant organ?

A. leaf B. stem C. root D. flower E. seed

Biology & Microbiology

If two sister species on the phylogenetic tree above differ from the other two in a single character state (say dark or light fur), how many character state changes (evolutionary events) are needed to explain this pattern?

a. one c. three b. two d. four

Biology & Microbiology