(Q).
Answer the following question given this paragraph: Endoskeleton An endoskeleton is a skeleton that consists of hard, mineralized structures located within the soft tissue of organisms. An example of a primitive endoskeletal structure is the spicules of sponges. The bones of vertebrates are composed of tissues, whereas sponges have no true tissues (Figure 38.4). Endoskeletons provide support for the body, protect internal organs, and allow for movement through contraction of muscles attached to the skeleton. Q: A skeleton that consists of hard, mineralized structures located within the soft tissue of organisms is called what? Choices: - exoskeleton - calcium deposits - hydrostatic skeleton - endoskeleton A:
(A).
endoskeleton

(Q).
Answer the following question given this paragraph: Parasitic fungi often cause illness and may eventually kill their host. They are the major cause of disease in agricultural plants. Fungi also parasitize animals, such as the insect pictured in Figure below . Fungi even parasitize humans. Did you ever have athelete's foot? If so, you were the host of a parasitic fungus. Q: Parasitic fungi often cause illness and may eventually do what to their hosts? Choices: - reproduce with them - mutate them - become them - kill them A:
(A).
kill them

(Q).
Answer the following question given this paragraph: Red blood cells transport oxygen to the tissues so they can function. In the absence of oxygen, cells cannot carry out their biochemical responsibilities. Oxygen moves to the cells attached to hemoglobin, a protein found in the red cells. In cases of carbon monoxide poisoning, CO binds much more strongly to the hemoglobin, blocking oxygen attachment and lowering the amount of oxygen reaching the cells. Treatment involves the patient breathing pure oxygen to displace the carbon monoxide. The equilibrium reaction shown below illustrates the shift toward the right when excess oxygen is added to the system:. Q: What type of blood cells transport oxygen to the tissues so they can function? Choices: - white blood cells - mutated blood cells - depleted blood cells - red blood cells A:
(A).
red blood cells