The nucleic acid of a virus is made up of which of the following?

A. DNA

B. RNA

C. both DNA and RNA

D. neither DNA or RNA

Which statement regarding the urea cycle is false? One of the 20 common amino acids is an intermediate in the cycle. Part of the cycle occurs in the mitochondria and part in the cytosol.

Mario performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. The data from his experiment are shown in the table below. What could he have done to increase the validity of his data?

A white horse and a brown horse reproduce, which is the prominent gene

Suppose a disease spread through all the red oak trees in a forest economic. A: explain how the change in the ecosystem affects affects the biodiversity of this forest ecosystem. Provide an example that supports your reasoning. B.

Which statement best explains why meiosis produces haploid cells rather than diploid cells? Haploid cells join to form an organism that has half the number of chromosomes as the parent.

How did the development of the hela cell line affect society?

The human body is composed of cells, organs, organ system and tissues. How are these organized

Why might it be particularly beneficial for the giant spider crab to be so large?

In which stage of growth do plants rest or grow very little?

Scientists have debated the evolution of three life forms: reptiles, birds and dinosaurs. After many years of reviewing fossil records scientists proposed the evolutionary relationship seen above in the cladogram.