Answer:
Mutations and sexual reproduction increase genetic variation in a population. Natural selection occurs when environmental pressures favor certain traits that are passed on to offspring. ... Individuals may mutate, but natural selection acts by shifting the characteristics of the population as a whole.
Explanation:
Global warming is the increase in Earth's average temperature over a long period of time.
<h3>
GLOBAL WARMING:</h3>
- Global warming is a cause for concern in our world today. It is a phenomenon whereby the temperature of the Earth atmosphere increases over a period of time.
- Global warming is caused by the release of greenhouse gases into the atmosphere. Greenhouse gases are capable of trapping and releasing heat into the Earth.
- Greenhouse gases include; carbon dioxide ((CO2), methane, sulfur dioxide (SO2) etc.
- Therefore, global warming is the increase in Earth's average temperature over a long period of time.
Learn more about global warming at: brainly.com/question/23569238?referrer=searchResults
Answer:
false
Explanation:
a microscope is used to enhance small objects like cells.
(A)An adaptation is a characteristic that helps an animal survive in its habitat. All animals must be able to obtain food and water, protect themselves from harm, withstand the climate, and reproduce young so the species doesn't become extinct. ... Without their adaptations, the species could not thrive in that environment.
GIRAFFE-That ability – coupled with the tongue's impressive reach and its tough skin – allows giraffes to selectively browse, plucking leaves from among the nasty thorns brandished by many of its preferred food trees, such as acacias.
Answer:
pathogens
Explanation:
Microorganisms that cause disease are collectively called pathogens.
