Many organisms depend on the land as a food source. Seasons can affect the amount of food that is available to these organisms. How would a long, cold winter most likely affect a population of deer?

The deer population will decrease.
The deer population will increase.
The deer population will remain almost the same.
The deer population will rebound the next year.

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

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating

Aperson with age is more likely to catch diseases that healthy people usually don’t catch. what are these infections called?