How does summation operate in a post-synaptic cell? a). it adds up all of the previous action potentials and releases one of that value. b). post-synaptic cells do not fire. c). input from many cells is required for it to fire. d). sodium ions are moved from one cell to the next in an additive way.

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.

What was the impact of the concordat of worms?

Which characteristic should describe all evidence collected by a scientist? true obvious objective subjective