What determines similarities in anatomical features among organisms

Explain the different ways in which an autocracy and oligarchy and democracy exercise authority

What kind of organisms live in estuaries?

What natural process removes carbon dioxide from the air?

Many traits, such as stem length in plants and skin color and height in humans, are controlled by two or more genes. What is this called?

What is the molecular formula for cellular (aerobic) respiration?

Why is it important for young infants to not be given any solid foods before the recommended 4 - 6 months?

Plants are eaten by grasshoppers, which are eaten by mice, which are eaten by snakes. What will happen to the other members of the food chain if the grasshoppers are removed?

The chromosomes and genes in your feet differ greatly from those in your eyes because they are parts of separate organs.

Which proteins is used as a chemical defense at body surfaces?

Would you expect a field guide to have common names as well as scientific names?