The all-or-none principle states that: a. Only sensory stimuli can activate action potentials.
b. All stimuli will produce identical action potentials.
c. Only motor stimuli can activate action potentials.
d. All stimuli great enough to bring the membrane to threshold will produce identical action potentials.

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area

Select all that apply. why are common names not a good reference to a species? common names can be in different languages common names vary with location common names vary with culture common names vary with species color