what characteristics allows a molecule such as estrogen to easily pass through the cellular membrane and bind to an intracellular receptor?

Photosynthesis converts light energy to chemical energy. which molecules are the end product of this transformation of energy in this reaction?

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?

Evolution acts upon the population of organisms and not on each individual organism