Answer:
It doesnot have a nucleus to increase the surface area
Explanation:
Red blood cells carry oxygen from our lungs to the rest of our bodies .Then they make the return trip, taking carbon dioxide back to our lungs to be exhaled.
You would weigh less on Mars than on Earth because there's less gravity on Mars
C- mushroom
Mushrooms break down (decompose) dead cells of animals and plants.
Algae, lichen, and oak trees go through photosynthesis and are producers.
