Grade 6 Biology Principles Worksheet
Explore fundamental biology principles for Grade 6, covering cell structure, classification of living things, and ecosystems.
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Grade 6 Biology Principles
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Read each question carefully and answer to the best of your ability. Good luck!
1. Which of the following is considered the basic unit of all living things?
Organ
Tissue
Cell
System
2. Look at the image of the plant cell below. Which part is responsible for photosynthesis?

Cell Wall
Nucleus
Chloroplast
Mitochondria
3. Scientists classify living things into different groups based on their .
4. The largest classification group for living organisms is called a .
5. Producers are organisms that make their own food, usually through photosynthesis.
True
False
6. Decomposers break down dead organisms and waste, returning nutrients to the soil.
True
False
7. Describe the role of consumers in a food chain.
8. Examine the food chain diagram below. Identify one producer and one primary consumer.

Producer:
Primary Consumer: