Give two possible ways that negative human impact on the pH of Earth's oceans can be reduced.

How does a penguin increase the chance of survival of its species

The inner mitochondrial membrane contains numerous inward folds called cristae, which greatly increase the surface area of this membrane.

3. Hospitals are classified into four types depending on the sources of income received. List the four (4) main types.

Which of the following cycles involves chemically storing energy and releasing energy through the use of mitochondria? A.) Phosphorus Cycle B.) Hydrolic Cycle C.) Carbon Cycle D.) Nitrogen Cycle

All of the following prevent pathogens from entering the human body except a. red blood cells b. tears c. mucus d. skin

Which of the following wave properties would be the best way to measure the height of a wave?

Would evolution by natural selection be able to happen if there was NO differential survival and reproduction within a species? Why or why not?

Air pollution is caused by A. natural events and human activities. B. human activities but not natural events. C. heavy rainfall. D. the sun.

Which of the following can increase the growth of algae when it enters streams? A) insecticide B) herbicide C) carbon dioxide D) oil

Which are the best examples of types of molecules used for energy storage by organisms? Choose all answers that are correct. A. lipids B. proteins C. nucleic acids D. carbohydrates