What does lead exposure cause in children?

a. diarrhea

b. developmental delays

c. cancer

d. increased appetite

9. In pea plants purple flowers are dominant to white flowers. If two white flowered plants are cross, what percentage of their offspring will be white flowered?

Imagine a world in which all the elements existed, but they couldn't form any chemical bonds with each other. What kinds of substances could exist in such a world? What kinds of substances could not exist? What do you think this world would be like?

Scientists believe that four-legged mammals might be distant ancestors of modern-day whales. What evidence seems to support this idea? A) Migration Patterns. B) DNA Evidence. C) Animals with similar embryo development.

What can happen after a lake receives a large input of limiting nutrient

This organelle carries

Why is biodiversity one of Earth's greatest natural resources?

Which of these is the best description of voice? the sound produced by humans and other vertebrates using the lungs the oral expression of thoughts, feelings, and ideas the expression of human communication through which knowledge can be explained

What advantage does nuclear power have over fossil fuels? A. It is an unlimited supply of energy. B. It has no negative byproducts. C. It does not release greenhouse gases. D. It is easier to build nuclear power plants.

What is an irregularity leading to cancer?

What is an example of over confidence interfereing with a researchers study.