A terrestrial ecosystem is a land-based community of organisms.
Pardon? I don’t understand the question
<span>TRADE OFF occurs during the design process when one benefit is given up in order to obtain another.</span>
Answer:
The answer is- Feeling worthless and guilty
Explanation:
The options are;
a. Hypersomnia
b. Melancholia
c. Feeling worthless and guilty
d. Suicidal ideation
Option D is the answer because Edward feels responsible for his best friend's divorce even though he had nothing to do with it. One of the symptoms of depression is the feeling of worthlessness and guilt. Edward is feeling guilty.
It is hard to understand this question but ill give you my best answer. The hearts level of organisation to cells is immense, the heart pumps blood to every cell in the body (so they can respire) through a system of Arteries, veins and capillaries. The blood is pushed by the force of the heart through the arteries, the main (and largest) tubes for transportation to segments of the body further away from the heart. This goes into a smaller system of veins that brake off into a tree kind of pattern to reach every cell. These later brake off into the capillaries that have walls only 1 cell thick. This is how blood is transported to each cell that requires energy and oxygen to respire.
