4. Which part of DNA provides instructions for how to produce a protein?

A. The sequence of nitrogen bases

B. The sugar molecules

C. The phosphate groups

D. The bonds that hold the sugar and bases together

Explain how bone marrow can be called tissue

A person with blood type A has the following genes: a. AO. b. BO. c. AB. d. OO.

According to the American Psychological Association, which of the following is not among the top sources of stress for Americans? Work Health Money Education

The parts that make up a â€" are phrases; phrases end in resting places called

When developing a question for a scientific inquiry the question will ideally

Surface currents main source of movement comes from

True or false the earth rotates on its axis about once a year

Cancer, which can be considered as unregulated cell division, often results from mutations in proto-oncogenes and tumor suppressor genes. Usually mutation in more than one gene from each group is involved.

Why is water from an aquifer more likely to be cleaner than water from other sources? A. because it forms where fresh and salt water meet B. because it receives water directly from precipitation C. because it rises to the surface near the ocean D.

Water is a solvent becaause it