Topic 5: Protists
- Most protists are one-celled, but some have many cells.
- Cells have a membrane around the nucleus.
- Some get nutrients and energy by eating other organisms.
- Some get energy from the sun, and nutrients from the water around them.
- Most reproduce by splitting in two.
Topic 4: Bacterias
Class presentation
Review activity
Topic 3: Classification
Living things classification chart
Topic 2: Plant tissues
Chapter 23.1 Biology book (Miller & Levin)
Plant tissues online quizzes and activities
If you want to learn more about plant tissues.........
Topic 1: animal tissues
For more information about animal tissues, visit the 1st trimester section
Animal tissues laboratory
1st trimester
What are Tissues?
The word tissue is derived from a Latin word meaning to "weave." Cells that make up tissues are sometimes "woven" together with extracellular fibers. There are four main categories of tissues: epithelial, connective, muscle and nervous.