Which of the cell's organelles releases energy stored in food? a. mitochondriab. chloroplastsc. lysosomesd. endoplasmic reticulum

Which best describes red blood cells? a. they are colorless b. they protect against disease-carrying microorganisms c. they transport oxygen throughout the body d. they aid in blood clotting

Natural resources are any materials that humans obtain from the earth to meet our wants and needs.

People with one sickle cell allele are not likely to get malaria. what is this an example of?