A food chain can usually sustain no more than six energy transfers before all the energy is used up. And so less energy is transferred at each level of the food chain so the biomass gets smaller.
Answer:
1) The origin of life. 2) The mechanisms of evolution. 3) The control of the size, both of the organs and of the living beings.
Explanation:
Some examples,
Are gender traits completely a result of societal expectations?
Are there any parts of the human body that get oxygen directly from the air and not from the blood?
Are there nuclear reactions going on in our bodies?
Can humans ever directly see a photon?
D. He saw that the continent fits together like pieces of a jigsaw puzzle
as well, he had evidence from having similar rock formations from places that seemed to "connect", and he found fossils of the same dinosaur in different areas, that would have been impossible to go to because of the size and the inability to swim by the dinosaurs
<span />
Answer:
The answer is B.
Explanation:
The United States has been progressively expanding towards the southwest since the start of the country.
Answer:
Spider has a circulatory system
