Describe the differences between the composition of the air you breath in and the air you breath out

Protein molecules differ from carbohydrate or fat molecules by the addition of this element.

What changes when the mass of an object increases while the volume stays the same?

Based on the theory of island biogeography, which of the following is the most likely reason that an island in the ocean that is 5 kilometers from a continent would have a higher number of species than one that is 15 kilometers from a continent?

Define adaptation as it relates to evolution

How is DNA related to reproduction

The figure shows an energy pyramid for an ecosystem. What happens to the amount of energy in the pyramid as it moves up through the different levels?

If you had a sequence that was 32% thymine, how would the percentages be formed?

Looking at a cell under a microscope, you note that it is prokaryote. How do you know?/ A) the cell lacks cytoplasm B) the cell lacks a cell membrane C) the cell lacks a nuceleus D) the cell lacks genetic material

Similarity and differences between a female and a male urethra

The process by which organisms that are better adapted to the environment survive and reproduce is called?