Answer:
Explanation: Trophic level, also called feeding level, is defined as the feeding level or each stage in a food chain or food web. In other words, trophic level is the number of links by which food energy is transferred from producers to final consumers. For example, in a food chain like the one below, we can have these levels.
The basic number of chromosomes is designated by 2n and is also called somatic number. In normal human karyotype, the somatic number is 46, so 2n = 46. Human karyotype is also composed of 22 autosomes.

<h3><u>C. are serious and can be fatal.</u></h3>
<u>hope</u><u> it</u><u> </u><u>helps</u>
<u>#</u><u>c</u><u>a</u><u>r</u><u>r</u><u>y</u><u>o</u><u>n</u><u>l</u><u>e</u><u>a</u><u>r</u><u>n</u><u>i</u><u>n</u><u>g</u>
I would say the lens. The lens focuses light. The pupil allows light to come in, the iris gives color and controls how much light comes in.