Scientists have recently discovered a new species that lives attached to the side of a tree. This organism
- is multicellular
- has vascular tissues
- has membrane bound organelles
The scientists put the organism in a sealed glass container filled with carbon dioxide and oxygen for several hours. Which of the following is evidence that this new species is an animal?
a
decrease in phosphate levels
b
decrease in nitrogen levels
c
increase in oxygen levels
d
increase in carbon dioxide levels

D

Explanation:

Animals and plants  preform a process known as cellular respiration.

This process is:

oxygen+glucose--> carbon dioxide+ water + ATP (energy)

If a plant was placed in this container with carbon dioxide and oxygen, it would preform cellular respiration, but it would also use another process called photosynthesis:

carbon dioxide+water+light energy-->oxygen+glucose

Since a plant performs both, the levels of carbon dioxide and oxygen wouldn't change a lot.

However, if this was an animal, the carbon dioxide levels would increase. An animal would inhale oxygen, use it in cellular respiration, and then exhale carbon dioxide as a waste product.

Therefore, the correct answer is D: increase in carbon dioxide levels.

the right answer is a. skin cells forming from sunlight.

the liver is an organ endowed with a fantastic ability to regenerate

. thus, if a hepatectomy (ablation) of 70% of the hepatic mass is performed in the rat, there is complete recovery in 7 to 10 days.

prokaryotes are beings that have existed since the existence of life on earth, and do not come from another realm.

ribosomes are organelles that exist naturally in eukaryotes, either in free form or attached to the endoplasmic reticulum.

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explanation:

b r

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