When two or more species live in together in close long term relationship it is called?

Which of the following is not a defining characteristic of plants?

Which best example best demonstrates the importance of having knowledge of evolutionary relationships? a. illustration of a plant b.organ transplantation between species c. blood donation from a human d. do you need sequence of an insect.

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f