Natural selection a process that occurs over successive generations and is defined as the differential reproduction of genotypes. Natural selection requires heritable variations in a given trait
In most cases, the two major climatic factors affecting the distribution of organisms in terrestrial ecosystems are the amount of water and temperatures. Terrestrial ecosystems rely on the sun's energy to support the growth and metabolism of the organisms. Plants use the sunlight, then they supply the organisms that are higher up the food chain with energy and the structural buildings blocks of life. Water is also essential for the survival of these organisms.
Messanger RNA cuz it gives the "messages"... thats how i remembered it in school lol
<h2>Sea star </h2>
Explanation:
In the given example sea star played the role of keystone species
- Robert Paine actually coined the term keystone species to describe the effect that the sea stars had on biodiversity in this community
- Keystone species are those species which are least abundant but play a governing role to decide the structure and function of community
- Loss of keystone species in a community can lead to disturbance in structure and function of a community and it cannot be recovered by other species
Food webs show the flow of energy (stored as organic molecules) through ecosystems. Thus, a scientist would use a food web to show the flow of energy through an ecosystem.
