Answer:consumers
Explanation:because we are top off the food chain
Answer:
C. The reactions take up too much space in the cell if the enzymes are missing.
Explanation:
Just like in humans, radioactive material can damage plant tissues as well as inhibit growth. mutations are possible due to damage caused to the DNA. radioactive material in soil can prevent nutrient from being taken in by plants, causing it to be infertile.
Answer:
Explanation:
1. a. Sunlight hitting the Earth's surface is the source of all energy in the pyramid.
b. 25,500 kcal is provided by this source to a square meter per year.
Answer:
According to the current fossil record, scientists believe that the life on earth began about 3.5 billion years ago.
