After the occurrence described in Item 14, the phytoplankton concentration . Even though the amount of sunlight continues to increase, the phytoplankton change occurs because of the abrupt reduction in the nutrient concentration. This reduction comes about as phytoplankton, through photosynthesis, combine nutrients with carbon dioxide and water to form organic compounds. The dramatic phytoplankton population growth depletes the nutrient concentration and leads to the inevitable reduction of phytoplankton.

Dr. kaylan is an ecologist who studies bird behavior. she sets up an experiment to test which type of food crows are most likely to eat when given a choice between walnuts, corn, and sunflower seeds. to perform her experiment, dr. kaylan places three food bins in an area frequented by cows. each bin contains one of the three food types. then, she measures how much of each food type is eaten every day for a month and summarizes the results of her experiment in the pie chart below. based on her results, dr. kaylan concludes that crows choose to eat corn more frequently than other food sources because it has a higher nutritional value. what is a reasonable alternate conclusion that can be drawn from dr. kaylan's data

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

In what part of the body does the most muscle activity happen?