CK-12 Foundation
Ck 12: Life Science: 2.16 Cellular Respiration Process
Explore the specific reactions that happen during the cellular respiration process.
CK-12 Foundation
Ck 12: Life Science: 2.15 Cellular Respiration
Learn about the process of cellular respiration in the human body.
CK-12 Foundation
Ck 12: Life Science: 11.28 Blood Diseases
Understand how blood illnesses affect human health.
CK-12 Foundation
Ck 12: Life Science: 6.8 Fungi Structure
Understand the structure and function of fungi.
CK-12 Foundation
Ck 12: Life Science: 2.24 Mitosis vs. Meiosis
Use diagrams to help understand meiosis and mitosis.
CK-12 Foundation
Ck 12: Life Science: 2.18 Fermentation
Understand the cellular behind the process of fermentation.
CK-12 Foundation
Ck 12: Life Science: 12.17 Cellular Respiration and Photosynthesis
Explore the two complementary processes of photosynthesis and cellular respiration.
CK-12 Foundation
Ck 12: Life Science: Human Egg Cells
[Free Registration/Login may be required to access all resource tools.] When a baby girl is born, her ovaries contain all of the eggs they will ever produce. But these eggs are not fully developed. They develop only after she starts...
CK-12 Foundation
Ck 12: Life Science: Nerve Cells and Nerve Impulses
[Free Registration/Login may be required to access all resource tools.] The nervous system is made up of nerves. A nerve is a bundle of nerve cells. A nerve cell that carries messages is called a neuron. The messages carried by neurons...
CK-12 Foundation
Ck 12: Life Science: Domains of Life
[Free Registration/Login may be required to access all resource tools.] Humans are in the same domain as trees and algae. What could they possibly have in common? It is the location of their DNA inside their cells. Their cells all have a...
CK-12 Foundation
Ck 12: Life Science: Origins of Life
[Free Registration/Login may be required to access all resource tools.] There is good evidence that life has probably existed on Earth for most of Earth's history. Fossils of blue-green algae found in Australia are the oldest fossils of...
CK-12 Foundation
Ck 12: Life Science: Chemistry of Life
[Free Registration/Login may be required to access all resource tools.] Many chemical reactions are going on constantly inside your body. In fact, there are probably thousands of chemical reactions occurring every second in every one of...
PBS
Pbs Learning Media: Life's Greatest Miracle: Stem Cell Debate
This essay from NOVA: "Life's Greatest Miracle" explores the debate over the use of embryonic stem cells in scientific research.
CK-12 Foundation
Ck 12: Life Science: Cellular Respiration
[Free Registration/Login may be required to access all resource tools.] How does the food you eat provide energy? Through the process of cellular respiration, the energy in food is changed into energy that can be used by the body's...
CK-12 Foundation
Ck 12: Life Science: Archaea
[Free Registration/Login may be required to access all resource tools.] For many years, archaea were classified as bacteria. Like the bacteria, archaea lacked a nucleus and membrane-bound organelles and, therefore, were prokaryotic...
CK-12 Foundation
Ck 12: Life Science: Bacteria Reproduction
[Free Registration/Login may be required to access all resource tools.] Bacteria, being single-celled prokaryotic organisms, do not have a male or female version. Bacteria reproduce asexually. In asexual reproduction, the "parent"...
CK-12 Foundation
Ck 12: Life Science: Fermentation
[Free Registration/Login may be required to access all resource tools.] Sometimes cells need to obtain energy from sugar, but there is no oxygen present to complete cellular respiration. In this situation, cellular respiration can be...
Wisc-Online
Wisc Online: Learning Activity: Red Blood Cells
Fun site that teaches users about what red blood cells are and what they do. Provides users with interactive pictures of terms mentioned.
CK-12 Foundation
Ck 12: Life Science: Organization of the Human Body
[Free Registration/Login may be required to access all resource tools.] Cells, like these nerve cells, do not work in isolation. To send orders from your brain to your legs, for example, signals pass through many nerve cells. These cells...
Arizona State University
Arizona State University: Coloring Pages and Worksheets in Life Sciences
Collection of coloring pages and worksheets featuring different areas of biology and fun facts. Print pages out to color or download and color online.
CK-12 Foundation
Ck 12: Life Science: Meiosis
[Free Registration/Login may be required to access all resource tools.] Sexual reproduction combines gametes from two parents. Gametes are produced by a special type of cell division known as meiosis. Meiosis contains two rounds of cell...
CK-12 Foundation
Ck 12: Life Science: Mitosis and Cytokinesis
[Free Registration/Login may be required to access all resource tools.] During mitosis, the DNA in a nucleus must replicate. The copied DNA is divided into two genetically identical sets, so that after cytokinesis or cell division, each...
CK-12 Foundation
Ck 12: Life Science: 3.7 Protein Synthesis
Learn how the human body builds proteins.