Theis based on the observation that at very weak intensities a stimulus will not elicit a response, but as the intensity of the eliciting stimulus increases, there is a point at which the response is elicited.

The is an estimate of the fewest number of organisms a population needs to avoid extinction. this measurement will most if the number of offspring each female in the population produces increases. if the population's this measurement will most likely increase. 1 population density, minimum viable population, carrying capacity 2 decrease, be unaffected, increase 3 death rate increase, dead rate decrease

Which organ controls breathing? lungs alveoli heart diaphragm

Both destructive and constructive, the natural event seen here, is important in destroying and creating landforms on earth. what is this event called? a) deposition b) flooding c) landslide d) sedimentation