Is a sponge permeable

A stem and leaf plot can only have one stem and one set of leaves. True of false

The primary function of a neuron is a. the insulation of an impulse b. the generation of a nerve impulse c. the production of ATP to provide energy for impulse speed d. the formation of cerebrospinal fluid

Which organism represents the tropic level where the least amount of energy is found

The process of digesting food and breaking it down into smaller molecules for the body to use as energy" is the purpose of what human body system? A) Digestive B) Excretory C) Skeletal D) Nervous

Why can the body only metabolize d-glucose?

When light is refracted, the degree of bending is determined in part by?

How are organisms grouped in an ecosystem? a. by their movement b. by how they get their energy c. by how they migrate d. by how they produce

What happens to about 10 percent of the energy represented in each trophic level?

Is a lion is a carnivore?

How does the biological species concept define a species?