CK-12 Foundation
Ck 12: Biology: Female Reproductive Structures
[Free Registration/Login may be required to access all resource tools.] Covers female reproductive structures and their functions.
CK-12 Foundation
Ck 12: Biology: Homeostasis
[Free Registration/Login may be required to access all resource tools.] Explains the process in which organ systems work to maintain a stable internal environment.
CK-12 Foundation
Ck 12: Biology: Urinary System
[Free Registration/Login may be required to access all resource tools.] Describes the structure and function of organs that comprise the urinary system, and explains how the production of urine and the process of urination are controlled.
CK-12 Foundation
Ck 12: Biology: Central Nervous System
[Free Registration/Login may be required to access all resource tools.] Covers parts of the central nervous system and their functions.
CK-12 Foundation
Ck 12: Biology: Peripheral Nervous System
[Free Registration/Login may be required to access all resource tools.] Describes the two major divisions of the peripheral nervous system and their functions.
PBS
Pbs Learning Media: Dna Structure and Function: Decoding Watson
Discover how the structure of DNA relates to its hereditary function in these videos from the American Masters film Decoding Watson. The first video, "DNA Structure and Function," [2:07] can be used with all middle and high school...
Sumanas
Sumanas Inc: Life: The Science of Biology: The Mammalian Kidney
Use this tutorial to help supplement your learning about how the kidneys work.
Sumanas
Sumanas Inc: Life: The Science of Biology: The Ovarian and Uterine Cycles
What exactly happens when you ovulate? This tutorial explains what happens including what hormones are released and when.
BiologyWise
Biology Wise: Endothelial Cells and Epithelial Cells
Discusses the differences between endothelial and epithelial cells, including where they are found in the human body, their function, and their structure.
BiologyWise
Biology Wise: Structure and Functions of Proteoglycans
Proteoglycans are a type of protein that help in maintaining the integrity of connective tissue. Their chemical structure is quite complex and is explained here with the aid of labeled illustrations. Their functions in the support of...
Estrella Mountain Community College
Estrella Mountain Community College: The Nervous System
This online biology book chapter offers definitions and descriptions of the nervous system's components.
Texas Education Agency
Texas Gateway: The First Law of Thermodynamics
By the end of this section, you will be able to define the first law of thermodynamics; describe how conservation of energy relates to the first law of thermodynamics; identify instances of the first law of thermodynamics working in...
Ohio State University
Ohio State University: Plant Transpiration & Translocation
This is a good explanation of plant water balance issues and carbon fixing cycles. Transpiration processes are explained well with links to additional information.
Ohio State University
Ohio State University: Development From Seed to Plant
A thorough discussion of the environmental cues that can trigger germination and of the changes in structure that result. Charts, graphs, and links are also provided.
Alabama Learning Exchange
Alex: Biodiversity: Local Ecosystem & Food Web
This is a hands on lesson in which students will explore their local community to identify living things. It can be used as part of a unit on biodiversity and energy transfer within a biology, zoology, or environmental science course, or...
Other
Whitman College: Virtual Fetal Pig Dissection
A supplement to lab dissections exploring introductory mammalian anatomy and physiology, for a fetal pig.
CK-12 Foundation
Ck 12: Life Science: Features of Populations
[Free Registration/Login may be required to access all resource tools.] A population is a group of organisms of the same species, all living in the same area and interacting with each other. Since they live together in one area, members...
AdLit
Ad lit.org: Four Steps to Finding an Excellent Tutor for Your Child
Whether your child is lost in a haze of elementary grammar rules, sinking fast in a jumble of Newton's laws in middle school, or lost in the details of an AP biology class, you need help quickly, before your child falls way behind the...
Alabama Learning Exchange
Alex: "Dummie's" Guide to Pcr
(This lesson is for a more advanced class such as honors or AP Biology.) The lesson will look at one of the most important tools to the molecular biologist, PCR (Polymerase Chain Reaction). The students will learn the science behind PCR...
Khan Academy
Khan Academy: Cellular Respiration
Cellular respiration multiple choice questions to test students' knowledge of the topic from AP Biology.
City University of New York
Brooklyn College: Exploring Life @ Bi Odot Edu: Signs of Life: Complexity
A nice introduction to the idea that living things are highly organized at several different levels. Great as an introduction to biological complexity.
BBC
Bbc: Gcse Bitesize: Homeostasis in Humans
Homeostasis is the regulation of internal conditions inside cells or organisms, to create the optimum conditions for biological function, including body temperature. Links to a video and test are provided.
McGraw Hill
Glencoe Biology: The Integumentary System: Self Check Quiz
Try these five multiple-choice questions about the integumentary system. Each question has a clickable hint prompt as well as a self-checking feature.
BiologyWise
Biology Wise: Process of Spermatogenesis Explained
Describes how sperm cells are formed through the process of spermatogenesis and some factors that can negatively affect sperm formation.
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