While containing small amounts of lime, soda ash and silica, glass is primarily made of what substance?

What forms around the two chromosome groups at the end of mitosis?

What are the basic steps of the water cycle

Insects account for approximately 50 percent of all animal species. True False

Which level of classification contains all the others? 60 kingdom domain genus class

One protective measure to prevent asphyxiation is that the gas is

A virus is not considered a true living thing because it lacks one of the requirements of life. The ability to respond to stimuli The ability to reproduce The ability to grow and develop The ability to utilize a form of energy

What kinds of organisms require telomerase?

Suppose that a species of fish has split into two populations in a lake: one on the eastern side and one on the western side. How could you determine whether the two populations constitute different species? A.

Organisms interact with their environments, exchanging matter and energy. for example, plant chloroplasts convert the energy of sunlight to

What is the function on an ovary in a flower?