What is the complement base of thymine?

thymine

uracil

cytosine

adenine

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope?

You have a plant with yellow seeds, which express a dominant phenotype. How would you determine the plant's genotype? Conduct a Punnett square with a purebred recessive plant. Conduct a test cross with a purebred recessive plant.

The graph represents velocity vs. time for Carla. A graph with horizontal axis time (seconds) and vertical axis velocity (meters per second).

If you immerse a living cell in a hypertonic solution, water will a. move into the cell. b. fluctuate in and out. c. remain constant. d. move out of the cell.

What tissue type has polarity and is avascular?

Why is the action of phagocytes considered a nonspecific response? A It does not occur at any specific temperature. B It is not involved with the production of any specific type of lymphocyte. C It does not respond to any specific type of hormone.

Which statement best describes the relationship between the deer and the plants?

A decrease in honey population will ...

Viruses cannot reproduce on their own and require a host organism to do it for them. This is one reason viruses are not considered to be alive

If the environment changes what is the first thing a species will do to survive