Answer: B
Explanation:The energy needed by living things comes from the sun. Every ecosystem depends on green plants to trap the energy in sunlight and change it into chemical energy. The process by which green plants convert the sun's energy is called photosynthesis.
Answer:
Usually, Populations have a genetic variation among individuals, which is important to the population's ability to survive in different situations that have an effect on the natural selection. There are different factors which can increase or decrease the genetic diversity, and influencing natural selection.
These factors include an environmental factor, one of the major factors, which may cause changes in the genetic variation of a population and influence the natural selection. A famous and important example of environmental factors affecting natural selection was during the Industrial Revolution, when many more grey moths made up the moth population.
This was so that they could blend in with the soot from factories to avoid predators.
A serious, inflammatory condition
in which the colon mucosa protrudes through the colon wall is called diverticulitis.
Diverticulitis is a related digestive condition that affects the colon. This
condition occurs when naturally weak part of the colon tears which result in
inflammation or infection. Symptoms of diverticulitis include severe abdominal
pain, fever, nausea and constipation.
