Animals

ARKive - Endorsed by David Attenborough, inlcudes images and videos of thousands of threatened species, lesson plans and downloadable slideshows. This is a good site for learning about specific animals - A Year 7 project to describe the structual, functional and behavioural characterisitics of organisms or "If I was an animal, I would be a ......, because........."
Extreme Science - World records in the Animal Kingdom.
Gould League - Interactive Food Webs, great for Year 7 to Year 11 Ecology.
Wild Zoo Funded by DEECD, this site has conservation mash-ups, primate behaviour research and the Bushfires and Wildlife Challenge.
Zoos Victoria - Excellent site for information about Melbourne Zoo, Healesville Sanctuary and the Werribee Open Range Zoo, including lots of educational resources.

Cells

Cells Alive - Interactive website with animations of animal, plant and bacterial cells and cell organelles, mitosis, meiosis and relative sizes of microscopic components.

General Biology

Biology 4 Kids
Biology Corner has a variety of lessons, quizzes, labs, web quests, and information on science topics. Topics include: Ecology, Genetics, Anatomy, Cells, Scientific Method, and Evolution.
Biology games and quizzes
Fossweb - Full Option Science System for Inquiry-based learning.
Hawkesdale Biology - My Wiki with more Unit 1 and 2 VCE Biology resources.
National Geographic - Fun Activities for kids including cartoons, recipes and crafts.

Human Body

The Brain The Brain from Top to Bottom
Digestive System animation uses Flash, so cannot be accessed on ipods or ipads.
Heart animation
Incredible Human Machine interactive from National Geographic.
Interactive Autopsy (Not for the squeamish! - details about what happens during an autopsy).
Visible Body

Nutrition and Disease

WorldMapper is an interesting site that shows countries size depending on various factors - this one uses "Deaths due to nutritionmal deficiency" for example, so India and Africa are enlarged, compared to Australia and New Zealand, which have virtually disappeared.

Ecosystems

MESA - Marine Education Society of Australasia an amazing source of unit plans about a wide variety of marine topics - mangroves, sea turtles, seagrasses, sharks, deep-sea biology and over 2,500 pages of information and images.

Videos

Science Hack - Accurate, high-quality videos for all science subjects.

VCE Biology

10 Great Biology Activities from About:Biology (pity about the ads).
Biology Questions and Answers has over 1800 Q and A for Biology revision.
Click 4 Biology includes 14 units of work from cells to human physiology.
Hands On Activities for Teaching Biology with student handouts and teacher preparation notes for a variety of computer activities and experiments.
Hawkesdale Biology - My Wiki with more Unit 1 and 2 VCE Biology resources.
VCE Biology - My Blog has links to many more resources specifically for Unit 1 and 2 Biology.
Mr Barlow's Blog and iPod Apps
Andrew Douche's Blog and Podcasts