which of the primary tissue types detects and responds to changes in the environment in order to maintain homeostasis?
a) dense irregular
b) connective
c) epithelial
d) muscular
e) nervous

Consider darwin's first writings on the theory of natural selection. an important point of darwin's essay on the principle of population, written in 1798, was a peer's observation that in nature plants and animals produce far more offspring than can survive, this observation can be attributed to a) charles lyell. b) thomas malthus. c) jean-baptiste lamarck. d) johann friedrich meckel.

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates