Answer the following question given this paragraph: Examples of protozoa include amoebas and paramecia. Q: Amoebas and paramecia are examples of what? Choices: - vertebrates - bacteria - protists - protozoa A:
protozoa

Answer the following question given this paragraph: Head hair protects the scalp from ultraviolet light exposure and loss of body heat. Hair in eyelashes, eyebrows, and nostrils traps water, dust, and other irritants. Nails protect the ends of fingers and toes and enhance the sense of touch. Q: What protects the scalp from ultraviolet light exposure and loss of body heat? Choices: - ground hair - temporal hair - receding hair - head hair A:
head hair

Answer the following question given this paragraph: Diffusion is the movement of a substance from an area of a higher amount toward an area of lower amount. A concentration gradient initially exists across the cell membrane. Equilibrium is reached when there is an equal amount of the substance on both sides of the membrane. Q: What do you call the movement of a substance from an area of a higher amount toward an area of lower amount? Choices: - filtration - extraction - precipitation - diffusion A:
diffusion

Answer the following question given this paragraph: Example Problem: The density of steel is 9000. kg/m 3 and the density of water is 1000. kg/m 3 . If a cube of steel that is 0.100 m on each side is placed in a tank of water and weighed while under water, what is the apparent weight of the cube?. Q: Cephalization refers to the development of what anatomical region, which evolved at the same time as bilateral symmetry in animals? Choices: - tail - chest - heart - head A:
head