Select the correct answer. Over the last 250 million years, the world changed from a single land mass to a number of different continents. One reason for the change is expanding ocean floors. What causes ocean floors to expand?

What light intensity and CO2 level do you think will maximize the rate of photosyntesis?

Compared to our solar system, the universe is 1. younger, smaller, and contains fewer stars 2. younger, larger, and contains more stars 3. older, smaller, and contains fewer stars 4. older, larger, and contains more stars

The form of cellular transport that expends the cells energy is know as

Which purposes do ngos serve with regard to human rights issues? select all that apply?

There are many differences among humans. However, all humans belong to the same species because they A. can communicate with one another using sound. B. can mate with one another to produce fertile offspring. C. all give birth to live young. D.

The mass of Venus is 4.87 * 1024 kilograms, and the mass of Jupiter is 1,898 * 1024 kilograms. the mass of jupiter is how many times the mass of venus

Which layer of the human energy field is most closely associated with the body's blueprint of physical health and is found closest to the physical body?

How are heat energy and temputure related?

The movement of energy through an ecosystem is best described as a A. food web. B. trophic level. C. food chain. D. cycle diagram.

Why is Compound X most likely an enzyme?