1. The third layer of the eye is the Retina 2. The retina <span>receives light rays and images and passes them on to the Optic nerve.</span>
ATP is the chemical substance that is used to power the cellular activities
Answer:
limiting factors
Explanation:
The ecological optimum represents the value of the factors within the ecological valence at which the life processes of a species take place best. The upper and lower limits of an ecological valence are its maximum and minimum. Beyond these limits, physiological processes are interrupted and death occurs.
Answer:Toothed whales do not make the long, low-frequency sounds known as the whale song. Instead they produce rapid bursts of high-frequency clicks and whistles. Single clicks are generally used for echolocation whereas collections of clicks and whistles are used for communication.
They require shallow waters where the sun can reach them!
