Which statement best describes a link between the nervous and excretory systems?
A. The kidneys return excess salt from the blood to neurons.
B. Water transmits action potentials from neurons to nephrons.
O C. Signals from the brain control how the kidneys function.
D. The ureters produce hormones used in the nervous system.

What are the two main phases of a cell cycle

Use this dichotomous key for insect identification to identify the insect shown. 1. a. insect has one pair of wings. order diptera b. insect has two pairs of wings. go to #2 2. a. front wings thicker in texture than hind wings go to #3. b. front and hind wings are same texture throughout. go to #4 3. a. front wings are short order dermaptera b. front wings cover entire abdomen order coleoptera 4. a. wings with scale on all parts of their area. order lepidoptera b. wings without scales go to #5. 5. a. hind wings smaller than front wings. order ephemeroptera b. front and hind wings nearly equal in size. order odonata the insect pictured is in the order diptera. ephemeroptera. coleoptera. odonata.

This group of organisms perform the process of ammonifcation. a. herbivores b. decomposers c. carnivores c. plants