When a macrophage engulfs a pathogen, a piece of

10 Jun When a macrophage engulfs a pathogen, a piece of

Question
1. When a macrophage engulfs a pathogen, a piece of the pathogen is then presented on the macrophage’s surface in the _ (blank) _ protein.

Select one:

a. Self-antigen complex

b. Immunoglobulin complex

c. Histamine complex

d. Cell-mediated complex

e. Major histocompatibility complex

2. What determines the movement of winds across the earth’s surface?

Select one:

a. The unequal heating of the surface of the earth by the sun

b. The currents of the oceans

c. The distribution of mountains and valleys

d. The rotation of the earth

e. The greenhouse effect

3. All of the following are factors that affects biotic potential except _(blank) _.

Select one:

a. Age at which reproduction begins

b. How many different mates each individual has

c. Changes of survival until age of reproduction

d. Usual number of offspring per reproduction

e. How often each individual reproduces

4. Which of the following tissue type forms the external lining of organs?

Select one:

a. Skeletal

b. Cardiovascular

c. Nervous

d. Epithelial

e. Connective

5. What is contained within an ecosystem?

Select one:

a. Only the food relationships found in an environment

b. Only the abiotic components of the environment

c. Only the energy flow components of the environment

d. Both the living and the abiotic components of the environment

e. Only the biotic components of the environment

6. The _ (blank) _ division of the autonomic nervous system directs responses that occur during times of relaxation and is sometimes referred to as the “housekeeping division.”

Select one:

a. sympathetic

b. integration

c. parasympathetic

d. somatic

e. primary motor

7. Which of the following statements is not accurate?

Select one:

a. Both plants and green algae contain vascular tissue

b. Both plants and green algae contain vascular tissue

c. Both plants and green algae store carbohydrates as starch

d. Both plants and green algae have cellulose in their cell walls

e. Both plants and green algae contain chlorophyll b

8. Which of the following is the benefit of a plant having mutualistic fungus on or in its roots?

Select one:

a. increased oxygen absorption

b. increased carbon dioxide absorption

c. increased photosynthesis

d. increased carbon dioxide production

e. increased water absorption