Transpiration in trees is a part of which cycle? A. water cycle
B. carbon cycle
C. nitrogen cycle
D. phosphorous cycle

Ascientist and her team counted 200 individual deer in an area of 10 square kilometers. what is the population density?

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a. control b. hypothesis c. procedure d. system

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.