One month ago, a teenage girl stopped eating animal-derived foods and now only consumes vegetables and fruits. She is now experiencing either a cold and/or an infection. This is probably due to inadequate protein intake for:

Synthesizing antibodies.

Explanation:

A person should have a balanced diet which consists of fruits, vegetables, pulses and many more nutritious things.

Escaping from any of these food will cause problem in the body. A girl has skipped the protein intake inside the body by skipping the animal derived food ans is now depending on the plant source for the diet.

Sooner, she was ill and had infection in the body because there was lack of protein in her diet which lead to problem in synthesizing antibodies.

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation:

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.