Yaks, polar bears and other mammals are able to survive in Earth's coldest habitats. Which statement explains how their bodies
maintain the free energy they require, even when the environmental temperature is very low?
A.
Layers of hair and fat radiate the thermal energy that their metabolism releases.
B.
Layers of hair and fat absorb the radiant energy of sunlight, even when that energy is minimal.
C. Layers of hair and fat trap the thermal energy that their metabolism releases.
D. Large body size increases the metabolic rate and generates more thermal energy.

What feature of cell theory is best demonstrated in the image

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

Plants that have reproductive structures called cones are?