The average distance across an ocean is 16,000 km. Two continents on either side of the ocean are con-verging at a rate of 10 cm/year. How long will it take for them to collide?

Experiments revealed the following information about a certain molecule: It can be broken down into amino acids. It can break down proteins into amino acids. It is found in high concentrations in the small intestine of humans.

Suppose you have made the following hypothesis: Sharks are most common near coral reefs, because there are more fish there to eat. What prediction could you make based on this hypothesis? A. Fish have to hide in the coral because of all the sharks.

What is true about the number of organisms in an ecosystem?

If there is no light at the bottom of the deep sea, why do animals have well developed eyes?

Which of the following natural processes involve the use and renewal of atmospheric gases? A. decaying of organic matter B. condensation of water vapor into precipitation C. evaporation of surface water by the Sun D. all of these

Identify each statement as a hypothesis, theory, or law. Higher air pressure causes fuel to burn at a faster rate.

Which sequence represents the correct levels of organization for multicellular organisms

Which statement best compares and contrasts lipids and carbohydrates? Both are used for tissues, but only carbohydrates are used for tissue growth. Both are used for energy storage, but only carbohydrates are used for long-term energy storage.

What is another name for lane d in the diagram

This is the energy stored as adipose tissue:.