2. In this model of a pond community, which organism are the producers
A. O the duck
B. O the turtle
C. O the plants
D. O the insects

C

Explanation:

Producers refers to an organisim that creates food for itself and is almost always they "lowest" on the food chain. Plants and algae are usually in this position. (Side note this is more of a biology question)

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

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