Which describes the variable that is changed to test the prediction

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

Which part of the neuron below is indicated by the arrow, and what is its function? hormones send chemical signals throughout the body to regulate other body processes. hormones are chemical signals that are sent throughout the body to regulate other body processes. hormones send electrical signals throughout the body to regulate other body processes. hormones are electrical signals that are sent throughout the body to regulate other body processes.

Recommend a strategy for incorporating sustainable human activity into a tropical rain forest biome.