blood rich in oxygen enters the lungs through the pulmonary artery in where the alveoli within the lungs exchange carbon dioxide and oxygen so the carbon dioxide leaves your body.
Hope this helps a bit
because the products of the process, such as ethanol, contain more energy than does carbon dioxide, the product of aerobic respiration.
Answer: Paleozoic
Explanation: The Paleozoic Era, which ran from about 542 million years ago to 251 million years ago, was a time of great change on Earth. The era began with the breakup of one supercontinent and the formation of another plants became widespread. And the first vertebrate animals colonized land.
Answer:
when comparing dogs to wolves, scientists found evidence that supports the idea they come from a common ancestor. which evidence was most important in understanding this? comparable anatomies, fossils, and behavior different anatomies, similar development, and different dna comparable anatomies, similar development, and similar dna different anatomies, fossils, and behavior
Explanation:
