With aging the skin becomes thinner and more fragile. the thinning of the skin's subcutaneous fat layer makes older adults more sensitive to:

In nature, the elements oxygen and hydrogen are usually found as gases with the formulas O2 and H2. Why? Are they compounds? Are they molecules?

Many different parts of the brain work together to encode, store, and retrieve information as needed. The diagram below indicates three parts of the human brain that are involved in information storage.

Which bar graph best represents the provided data? cause of extinction

A temperature inversion occurs A) when warmer air traps cooler air near the ground B) when cooler air traps warmer air near the ground C) whenever smog is present D) all of these

Which of the following are not properties of carbon? . It's very cohesive and adhesive. . It can form polymers like carbohydrates, lipids, proteins, and nucleic acids. . It can regulate temperature. .

Joel is comparing two slides showing chromosomes in a sperm cell and a skin cell of a dog. He finds that the sperm cell has 39 chromosomes. How many chromosomes can he expect in the skin cell?

Which of the following is NOT true of greenhouse gases? a. They absorb Earth's radiation. b. They are produced solely by human activities. c. They are transparent to incoming solar radiation. d. They include carbon dioxide and water vapor.

What determine the functions that a carbon compound can perform

Which of the following is a characteristic of protein

Ticks suck blood from a host organism. This is an example of A) commensalism. B) competition. C) mutualism. Eliminate D) parasitism.