Which is the only structure you would expect to see when examining a prokaryotic cell with a compound microscope?

• nucleus
• chloroplast
• cell membrane
• mitochondria

This diagram shows the cell cycle.

Which of the following activities occur in the S phase?

• Replication of the DNA
• Growth of the cell
• Formation of the mitotic spindle
• Breakdown of the nuclear membrane

The diffusion of water through a semi-permeable membrane is called?

• Osmosis
• Cell wall
• Diffusion
• Respiration

Use the chart to find to amino acid that corresponds to the codon GGA:

• Alanine

• Glutamic Acid

• Lysine

• Glycine

In DNA, adenine pairs with _______, while guanine pairs with _______.

• uracil / cytosine

• thymine / uracil

• thymine / cytosine

• adenine / guanine

What gamete possibilities could come from this parent's genotype?

• AB, AB, aB, aB
• Ab, AB, Ab, ab
• Ab, Ab, Ab, Ab
• AB, aB, ab, aB

Purple is dominant to white. A heterozygous purple flower is crossed with a white flower. What are the genotypes and phenotypes of the offspring?

• 100% Pp (purple)
• 50% Pp (purple); 50% pp (white)
• 75% Pp (purple); 25% pp (white)
• 25% PP, 50% Pp, 25% pp
  75% purple, 25% white

Adaptations that result from natural selection are expected to increase the fitness of an organism. In terms of natural selection, which of the following best describes fitness?

• Being able to escape from predators
• Being among the strongest organisms in a population
• Being able to survive, find a mate, and produce offspring
• Being able to survive long enough to reach the adult stage

What is the name of bird W?

• Certhidea
• Geospiza
• Camarhynchus
• Platyspiza

two-name system of classification

• phylum

• classification

• taxonomy

• binomial nomenclature