Answer:
A. Chemical energy is used by each of the organisms in the food pyramid, resulting in less energy as it moves up the pyramid.
Explanation:
Green plants are autotrophs. They manufacture their own food through photosynthesis. Through sunlight, the food manufactured has chemical energy stored in them which is made available to the heterotrophs. Heterotrophs are mainly consumers, while autotrophs are producers.
Heterotrophs rely on autotrophs for their nutrition.
Thus, as consumers above at the top of the pyramid feeds on those below, the stored energy is being transferred up and used. These energy reduces as it goes up right to the top of the pyramid.
The best statement that describes how chemical energy is transferred up the pyramid is: "A. Chemical energy is used by each of the organisms in the food pyramid, resulting in less energy as it moves up the pyramid."
Answer:
18. G
19. C
20. I
Explanation:
18. Because the two forces are going in an opposite direction, it equals out, resulting in no change in direction or location.
19. Scientists could use tools and determine if the high temperature is the given temperature
20. Sound causes waves to travel
Answer:
Enzyme function is increased as temperature increases. Temperature is energy. More energy equals more work being able to be done. It works the opposite way as well. Colder temperatures slow work as energy becomes less available for doing work.
Explanation:
Considering the answers;
<span>a. De jure segregation still exists.
b. De facto segregation still exists.
c. There is very little segregation in the U.S. today.
d. Segregation is more vital today than in the past.
</span>
Answer;
B. De facto segregation still exists.
Explanation;
De facto segregation is a racial segregation, especially in public schools, that happens, by fact, rather than by legal requirement. For example, often the concentration of African-Americans in certain neighborhoods produces neighborhood schools that are predominantly black, or segregated in fact, and not by law.