Which of these is not used by the nervous system to instruct the endocrine

system?

O A. Synapses

O B. Neurotransmitters

O C. Blood vessels

O D. Neuroendocrine cells

Which is part of the hydrosphere? A: polar ice B: glaciers C:lava D:groundwater

if a species of organisms do not reproduce sexually, and there are no mutations what claim can most likely be made about the population

What do genes contain the code for?

How much energy is passed on to each trophic level

Three examples of bacteria billions of years ago

Organisms best suited to the environment will be the ones that survive and reproduce. This statement best describes A. Natural Selection B. Punctuated Equilibrium C. Adaptive Radiation D. Artificial Selection

External vs Internal environment

According to this food web, which of the following would be considered secondary consumers? Group of answer choices Plants Grasshoppers Wolves Mushrooms

Is a nucleic acid that contains the genetic information for heredity in most organisms. A. a chromosome B. genetics C. a gene D. heredity E. DNA

Joe, a hiker, stands at the top of a hill on a trail above the ocean. Joe's friend Dave is just starting out at the trailhead, which is at the beach. Which statements about Joe and Dave are accurate? Select three options.