Which structure in a cell is composed mainly by proteins and lipids and aids in maintaining homeostasis within a cell? A. cytoplasm B. cell membrane C. nucleolus D. centrosome

Most female frogs lays their eggs in water. Male frogs release their sperm into the water to fertalize the eggs this is an example of?

If a man must take several courses of antibiotics to fight an infection, which of the following is most likely to occur?

ATP molecules, which are used for energy by cells, are built during all three stages of cellular respiration. Which stage of cellular respiration generates the most ATP molecules

How does the cell move materials across its membrane in order to keep its internal environment constant?

A blood sample contains several different types of cells. True or False

Which of the following best describes why the sun is so important to us? A. it quickly purifies air that becomes polluted B. It is the major source of energy on Earth. C. Without it, all the water on Earth would evaporate.

Suppose that you plan to grill a steak, and you add salt as seasoning. Does this cause the cells of the steak to gain water or lose water? Explain

A star is not considered born until the process of nuclear fusion

What dose the leftover of the exploded star produce

A genus is a taxonomic contains serveral