A biotic factor is the living part of an ecosystem, to thr answer will be plants.
A
Explanation:
it’s the one that makes the most sense !
It keeps the temperature on earth at a moderate level
Can you add it again
the image is looking too blurry in my computer
<span>Jackson
performed an experiment in which he analyzed the elemental components of
several unknown compounds. His results are shown in the table:
</span><span>Jackson concludes that only Unknown 2 could be a
protein.
</span><span>Of the explanations that supports Jackson's
conclusion is :
</span>
B. Proteins have some amino acids that contain
sulfur, whereas most lipids, nucleic acids, and carbohydrates do not contain
sulfur.