In an experiment there should be only one

A. control.

B. dependent variable.

C. independent variable.

D. All answers are correct.

A DNA strand with the sequence A-T-T-G-C-T would be complementary to which of the following? T-A-T-G-G-A OT-A-A-C-G-A C-A-A-T-A-G G-C-C-A-T-C

Why do longitude lines converge while latitude lines don't?

4. Which of the following is not a threat to marine biomes? A. Pollution C. Overfishing B. Garbage Patches D. Diverse food chains

One way that meiosis i is different from mitosis is that

What would happen if all of the genes in a cell were always active?

Which is an abiotic factor of the boomslang's environment? A. the sun B. the tree C. the grass D. the people

A double-stranded molecule of DNA has 80 T nucleotides and 110 G nucleotides. What is the TOTAL number of nucleotides in this molecule of DNA?

Why is an angioplasty an incorrect treatment for an aneurysm? A) Aneurysms cannot be treated. B) An angioplasty may rupture the blood vessel wall. C) An angioplasty can have dangerous drug reactions. D) Aneurysms are treated only with pacemakers.

Why was nucleic acid disregarded for so long as the molecule responsible for the transmission of hereditary information?

Sally's estimated energy requirement, based upon her age, height, and weight, is approximately 2000 kcalories per day. What is the maximum number of kcalories per day that she can consume to lose 3 pounds per month. Assume 1 month is 30 days. a.