2016-10-28T11:01:50ZThe cardiovascular system is comprised of the heart and the circulatory system. Take this quiz to find out what you know about this organ system.
2016-10-28T11:01:50ZBiology prefixes and suffixes help us to understand biology terms. The suffix (-stasis) refers to having a state of stability or equilibrium.
2016-10-28T11:01:50ZCellular respiration provides the energy needed to power cells. Find out how much you know about this process by taking the Cellular Respiration Quiz.
2016-10-28T11:01:50ZShould you clean your hands with a hand sanitizer or soap and water? Studies reveal that using soap and water is most effective at removing germs.
2016-10-28T11:01:50ZGonads are reproductive organs that produce sex hormones and support gamete development. Male gonads are the testes and female gonads are the ovaries.
2016-10-28T11:01:50ZDid you know that bacteria influence weather by causing rain and other types of precipitation? Discover 8 surprising things you didn't know about bacteria.
2016-10-28T11:01:50ZWhat is the largest gland in the body? Take the Human Anatomy Quiz and find out how much you know about human anatomy and the human body.
2016-10-28T11:01:50ZPathogenic bacteria produce poisonous substances that can cause serious diseases. Discover 7 scary diseases that are caused by bacteria.
2016-10-28T11:01:50ZExtremophiles are extreme organisms that live in conditions that are not optimal for supporting life. They thrive in habitats like hydrothermal vents.
2016-10-28T11:01:50ZMacrophages play an important role in the immune system by protecting the body from infectious agents. These white blood cells engulf and digest pathogens and cellular refuse, clearing the body of harmful substances.
2016-10-28T11:01:50ZAsters are star-shaped microtubule arrays found in animal cells. They help to form the spindle apparatus, which moves chromosomes during cell division.