Plants experience hydrotropism when they move towards a water source.
A. positive
B. negative

Which of the following occurs after a natural or unnatural disturbance in an ecosystem

How does the nervous system affect the excretory system?

Which best describes this behavior? it is beneficial only to the males that do not fertilize eggs. it is beneficial only to the female workers that are not fertilized. it is beneficial to each one of the individual colony members. it is beneficial to the whole species, but not to all of the individual members.