What are the types of friction

Why cells were observed in more detail using a compound microscope than a simple microscope?

Scientists have found strange new life-forms called "tubeworms" on the deep ocean bottom. What most likely provides resources for the tubeworms?

Some islands are formed by volcanic eruptions, and the islands provide habitats for many organisms. What is another way volcanic eruptions can benefit an ecosystem? A. transporting seeds B. providing fertile soil C.

During digestion, the blood picks up nutrients absorbed through the gi tract and transports them to the

1. All genes are not "on" all the time. Using the metabolic needs of E. coli, explain why not. 2. What are the two main ways of controlling metabolism in bacterial cells? 3. Feedback inhibition is a recurring mechanism throughout biological systems.

A species of cleaner fish removes parasites from another species of fish that is much bigger in size. The big fish keeps cleaner fish predators away. This type of species interaction is classified as: A.) Mutualism B.) Competition C.) Neutralism D.

Which characteristics make estuaries productive ecosystems?

Kayla has a cat with blue eyes. The color of her cat's eyes is determined by DNA. The DNA directs which substance to construct these eyes? A. lipids B. water C. proteins D. carbohydrates

The modern synthesis refers to: a. the combination of anthropology and biology b. the combination of modern genetics and Darwinism. c. the combination of modern anthropology with animal behavior d.

Is the pattern on a butterfly's wing unique to each?