Answer:
Tropical- rain forests are considered to be the lungs of the Earth due to their role in the carbon-oxygen cycle. The rain forests take in carbon dioxide and release oxygen into the Earth hence, providing the Earth with an abundance of oxygen. The working of these tropical rain forests is just like the working of our lungs, lungs remove carbon dioxide from the body and supply oxygen. Tropical rain forests carbon dioxide for the Earth and supplies it with oxygen.
Answer: a.
Explanation: because i got it right on a test i had
Answer:
Hypothesis. A Hypothesis is an estimation of what might happen and the student's observation before moving on to investigate.
One of the 4 nucleic acids that make up dna. It is purine derived & pairs with thymine.
The new species come from old ancestors of the animals that were there, over time they slowly evolved, and they adapted to that new environment.
