Dean is studying an organism. It is heterotrophic, multicellular, and eukaryotic. And sometimes undergoes sexual reproduction. A. Fungi

B. Bacteria

C. Animalia

D. Plantae

they deliver oxygen to the blood

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.

d.embryo is the correct one

explanation:

the sun shines white and black light to our planet. the white light has all the colors in it. in our upper atmosphere, we have dust particles and oxygen molecules. the white light meaning all of the colors in a rainbow shines through the upper levels of the atmopshere and the blue light scatters across the entire planet. that is why our sky is blue.