2017-02-25T11:01:52ZDid you know that plants are not the only organisms capable of photosynthesis? Test your knowledge of photosynthesis. Take the Photosynthesis Quiz!
2017-02-25T11:01:52ZAngiosperms, or flowering plants, are the most numerous of all the divisions in the Plant Kingdom.
2017-02-25T11:01:52ZFind resources that help explain the basics in this study of heredity or inheritance -- how traits are passed from parents to their young.
2017-02-25T11:01:52ZThe Three Domain System is a system for classifying biological organisms. Under this system, organisms are classified into three domains and six kingdoms.
2017-02-25T11:01:52ZMitosis is the cell division process by which organisms grow. Take this Mitosis Quiz and find out how much you know about mitotic cell division.
2017-02-25T11:01:52ZThe organ systems of the body work as one unit to keep the body functioning properly. Test your knowledge of body systems. Take the Organ Systems Quiz!
2017-02-25T11:01:52ZThe structure of DNA is that of a double helix. Similar to a spiral staircase, DNA is twisted and coiled so that it can be packed into our cells.
2017-02-25T11:01:52ZBiology prefixes and suffixes help us to understand biology terms. The suffix (-stasis) refers to having a state of stability or equilibrium.
2017-02-25T11:01:52ZLeaves are the sites of photosynthesis in plants. They come in various shapes and are vital for food production and the cycle of carbon and oxygen.
2017-02-25T11:01:52ZConstructing DNA models is an excellent way to learn about the structure of DNA. Discover a fun way to make a DNA model using candy.
2017-02-25T11:01:52ZGyri and sulci are folds and depressions in the brain that give the brain its wrinkled appearance. They divide the brain into hemispheres and lobes.
2017-02-25T11:01:52ZThe Gene Theory is one of the basic principles of biology. The main concept of this theory is that traits are passed from parents to offspring through gene transmission.
2017-02-25T11:01:52ZThe 12 cranial nerves arise from the brain and control a number of functions in the body. Most cranial nerves contain both motor and sensory neurons.
2017-02-25T11:01:52ZThis meiosis study guide introduces you to the basics of meiosis and the meiotic process. Sex cells are produced through this two stage process.
2017-02-25T11:01:52ZLiving organisms are classified into one of six Kingdoms of life. They are placed into these categories based on common characteristics.
2017-02-25T11:01:52ZCellular respiration provides the energy needed to power cells. Find out how much you know about this process by taking the Cellular Respiration Quiz.
2017-02-25T11:01:52ZT cells are white blood cells that actively destroy germs and signal other immune cells to participate in the immune response. T cells protect the body against cancerous cells and virus-infected cells.
2017-02-25T11:01:52ZA virus is a microscopic agent of disease that has characteristics of both life and non-life. Discover 7 interesting facts about viruses.
2017-02-25T11:01:52ZDid you know that some fungi can glow in the dark? Other types of fungi have even been used to cure disease. Explore seven interesting facts about fungi.
2017-02-25T11:01:52ZA daughter chromosome is a chromosome that results from the separation of sister chromatids during cell division.
2017-02-25T11:01:52ZHeart valves ensure that blood flows only in one direction. These thin flaps of tissue are also responsible for the sounds made as the heart beats.
2017-02-25T11:01:52ZA bacteriophage is a virus that infects bacteria. View animations of the lytic life cycle of a bacteriophage.
2017-02-25T11:01:52ZThe cytoskeleton is a complex network of fibers that function in cell support and movement. It shapes the cell and holds organelles in place.
2017-02-25T11:01:52ZMendel's law of independent assortment states that allele pairs separate independently during the formation of gametes.
2017-02-25T11:01:52ZWernicke's area of the brain is responsible for helping us to understand language. It is found in the temporal lobe and connected to Broca's area.
2017-02-25T11:01:52ZNeuroglia are nervous tissue cells that do not conduct nerve impulses like neurons, but provide a support function for nervous system components.