7. A drug company is testing the effectiveness of a new blood pressure medicine using rats as the test subjects.

a) Describe the experimental group:

b) Describe the control group:

c) What is the independent variable?

d) What is the dependent variable?

e) What are some possible factors that must remain constant during the testing?

1) What is the ONE factor that will be different between the experimental group and the control

group?

They both determine the exact age of rocks.

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.

The basic building blocks of dna and rna are nucleotides