22. An astronaut on the space station tests whether gravity affects the productivity of tomato plants. What is the independent variable in this experiment?

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.

2. which is the last step in the scientific method?

A(n) is a molecule influences the way that a molecule reacts.