What two things are involved in a nerve impulse?

What would a squirrel and a chipmunk be in competition for in a shared ecosystem? a. food and territory b. food and producers c. food and consumers d. food and shelter

True or false carbon dioxide is produced naturally, through volcanic activity

What protects your skin that is made of flattened skin cells?

What units are used to measure mass and weight? A. Mass & weight are measured in kilograms B. Mass and weight are measured in newtons C. Mass is measured in kilograms and weight is measured in newtons D.

As the seasons change from summer to fall, there are fewer hours of daylight. which is a typical response of a dogweood tree to this change?

To obtain evidence for the presence of black holes, scientist must?

The neurons in the inferior temporal cortex ... A. send visual messages to V1, V2 and V3 B. are specialized for processing spatial information and respond differentially to the direction and speed of movement. C.

Assessing claims and evidence

Passive transport does not mean that a particle is inactive or not moving. It means the particle can move without requiring what?

What are three types of passive transport that occur in the body