Amphibians have variable body temperature

Which of these conditions made it beneficial for aquatic plants to move onto land? a. bright sunlight, abundant CO2, and lack of competitors b. filtered sunlight, abundant O2, and higher pathogens c. less water, abundant nitrogen, and no pathogens

A fast-flowing river of air that forms when two air masses of very different temperatures meet is called a A) el Niño. B) jet stream. C) trade wind. D) sea breeze.

The practitioner carefully monitors his client who exhibits hemoglobin S (HbS) genes. The practitioner know that the client is predisposed to life-threatening infection due to damage by HbS to which of the following organs?

As a plant grows, the stem often becomes thickened and somewhat woody since it is responsible for supporting the upper branches and leaves. Cells in this area of the plant develop a. many mitochondria. b. extra chloroplasts. c. thickened cell walls.

d. What is the general term for organisms that live in soil and fallen leaves on the forest floor? What is one example of them?

When the blades of a fan move, they have mechanical energy. This mechanical energy comes from A. electrical energy flowing into the fan from the wall outlet. B. sound energy flowing into the fan from a radio. C.

A deficiency disease that illustrates the effect of integumentary system function on the structure of the skeletal system is

How would you expect the spread of an airborne disease to be similar to and different from the spread of a foodborne disease

The kidneys filter 2of blood every hour

Many body systems work together for proper functioning of the body and to maintain internal homeostasis. The (circulatory, digestive, excretory) works to break down food eaten before exercising.