How do scientists and biologists study the world

Where does all after energy in food web come from?

Vanillin, a compound in vanilla bean, is used for flavoring ice cream. The chemical formula for this compound is C8H8O3. How many of each atom is present in this compound? Carbon: Hydrogen: Oxygen:

Phospholipids and glycolipids form bimolecular sheets because of A the presence of two fatty acyl chains. B. the differing interaction between polar head groups with one another. C. the differing interaction between polar head groups and water. D.

When encountering other vessels in darkness or reduced visibility, what do visible white and green lights indicate?

What is activation energy? How does an enzyme affect the activation energy in a chemical reaction?

How would the ecosystem be affected if your top predators were hunted to extinction

3 ways that living creatures use lipids

Absolute dating can be determined by which of the following. Select all that apply. A. tree-ring patterns B. Earth's magnetic field C. a historian's journal D. coral growth cycle E. radioactivity F. photo comparison

What conditions cause the contractile vacuole to fill with water?

Which of the following is most likely responsible for the fact that organic molecules no longer formed spontaneously on Earth? A. The amount of UV radiation increased B. The amount of oxygen in the atmosphere increased C.