In which specimen were cells first identified?

How can you approximate the number of calories required to keep you in energy balance?

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

What are the proteins in connectivity tissues of your foot examples of?