The answer would be C. Energy is used through the food chain so energy always decreases. Population size would commonly decrease according to the pyramid of food chain but since there's no answer for that, C would be the most suitable
Answer:
Organelle (oppitional, I don't put this on my paper but you can if you want), cells, tissues,
Explanation:
I'm not sure how exactly you wanted this question to be answered. You're either talking about the symmetry where animals would have two legs or two arms for example and thus producing a pair of each muscle on both sides of the body, or you're refering to the development of agonistic and antaonistic muscles where each of them served a different purpose; either extending or contracting.
Answer: Major grain crops are corn, wheat, barley, oats, rye, rice, sorghum, and soybeans. Less than 10 percent of the corn grown in the U.S. is for human consumption. Legume plants such as dry beans and peas are important foods in the diet of many Americans and people around the world.
Explanation:
Herbivores are those animals that feed only on plants. Herbivores are food for carnivores, which feed on other animals. If a particular herbivore is over hunted by man, the particular carnivore that feed on that over hunted herbivore will be affected, because its source of food has been wiped out. Thus, it will have one less choice when it comes to food and it will have to concentrate on other type of herbivore as source of food. Thus, other herbivores in that particular ecosystem will be affected too.