Tropical rainforests make up what percent of africa s landmass?

a. about 5%

c. about 50%

b. about 20%

d. about 90%

How is a scientific law different from a scientific theory? O A. A theory becomes a law after a long period of time has passed. B. A theory is why something happens and a law is how something happens. OC.

What portion of the pituitary gland is controlled by nervous impulses?

What is another name for the range of motion in your joints? A. flexibility B. circulation C. posture D. muscular strength

Identify whether flexion or extension is occurring in the following situations: 1. Intervertebral foramen gets smaller 2. Anterior longitudinal ligament becomes taut. 3. Anterior annulus bulges slightly Spinous processes approximate 4.

Which benefits do mangrove trees provide to surrounding coastal wetlands? Select two options. They hold soil in place. They store floodwaters. They maintain surface water flow. They absorb the energy of waves.

What two purposes does semen have?

Select the expression that is equal to (9c+3) - (5x-7) 14x-4 14x + 10 4x-4 4x + 10

What is the term for the net force directed toward the center of an object's circular path? a. circular force c. centripetal force b. centrifugal force d. orbital force Answer:c. centripetal force

Stephan predicted that the seeds will start to grow faster if an electric current traveled through the soil in which they were planted. Is it A. Recognize a problem. B. Form a hypothesis C. Test the hypothesis with an experiment or D.

Carbohydrates may form larger carbon-based macromolecules by combining with which elements? A. sodium, potassium, nitrogen B. nitrogen, sulfur, phosphorus C. potassium, sodium, sulfur D. silicon, phosphorus, sodium