A possible explanation to a problem is a (n)

problem

observation

hypothesis

experiment

Which describes the best approach when conducting a scientific experiment?

How many mutations are required to cause cancer?

Where does dna replication occur in a cell?

In a plant that has red flowers, red flower color, rr, is completely dominant to white flower color, rr. if the plant is heterozygous for flower color, which alleles will be carried by the gametes it produces?

Which of these is a possible disadvantage of using wind as a source of energy? A. Wind energy is sustainable. B. Wind turbines can be placed on existing farms. C. Wind turbines take up a lot of psace. D. Wind energy creates new jobs.

When the plants are destroyed, many animals lose their.

6. At what level of specificity can DNA be used to distinguish organisms from one another? O A. It can be used to distinguish one species from another species. O B. It can be used to distinguish a class of organisms from another class. O C.

Which of these is a basic unit of macroevolution

Friedman and Rosenman found that compared to Type As, Type Bs had higher rates of CHD compared to Type As, Type Bs had equal rates of CHD compared to Type Bs, Type As had higher levels of stress hormones compared to Type Bs, Type As had lower levels

How does the contractile vacuole in a single-celled organism function to maintain homeostasis? A) It pumps water into the cell. B) It pumps water out of the cell. C) It pumps solutes into the cell. D) It pumps solutes out of the cell.