Other
Biology Guide: Human Life Span
Students learn about the human life-span. Some topics investigated in the tutorial are reproduction, nervous system, skeletal muscle, and homeostasis.
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.
Khan Academy
Khan Academy: Virus Structure and Reproductive Cycle Questions
These practice questions pertain to virus structure and reproductive cycle. This study resource from Khan Academy provides practice questions for the MCAT.
BiologyWise
Biology Wise: A Detailed Description of the Anatomy of Spiders
Describes anatomical features of a spider, including its external structure, eyes, mouth parts, digestive system, circulatory system, respiratory system, nervous system, reproductive system, and its spinnerets.
CK-12 Foundation
Ck 12: Life Science: Menstrual Cycle
[Free Registration/Login may be required to access all resource tools.] The menstrual cycle is a series of changes in the reproductive system of mature females that repeats every month. Learn more about the menstrual cycle in this...
BiologyWise
Biology Wise: Earthworm Biology: Science of the Natural Decomposers
The anatomy of an earthworm is described and how it reproduces.
BiologyWise
Biology Wise: Facts About Flatworms
Describes flatworm characteristics, including their physical features, types, nervous system, respiration, digestive system, and reproductive system.
CK-12 Foundation
Ck 12: Biology: Invertebrate Characteristics
[Free Registration/Login may be required to access all resource tools.] Covers characteristics of invertebrates.
CK-12 Foundation
Ck 12: Biology: Echinoderms
[Free Registration/Login may be required to access all resource tools.] Discusses characteristics of echinoderms.
University of California
Regents of the University of California: Amphibia Web
AmphibiaWeb, a site inspired by global amphibian declines, is an online system that allows free access to information on amphibian biology and conservation. This site is filled with amphibian facts, a glossary of terms, species numbers,...
Curated OER
Univeristy of Arizona: Site of Fertilization
A tutorial set up from the University of Arizona showing the fertilization of the human egg and the sperm's journey through the female reproductive system.
Curated OER
Univeristy of Arizona: Site of Fertilization
A tutorial set up from the University of Arizona showing the fertilization of the human egg and the sperm's journey through the female reproductive system.
Soft Schools
Soft Schools: Animal Structure, Function, and Behavior Quiz
Take an interactive quiz over animal structure, function, and behavior. After completing the quiz, check your score, and then revisit any incorrect question for further review.
CK-12 Foundation
Ck 12: Life Science: Echinoderms
[Free Registration/Login may be required to access all resource tools.] You're probably familiar with starfish and sand dollars. They are both echinoderms. Sea urchins and sea cucumbers are also echinoderms. What's similar between these...