Across
- 2. The total weight of all organisms in a population.
- 3. Selective breeding is used in p_____ and a______.
- 4. This method involves choosing desirable characteristics for continuation in next generation of cattle.
- 6. The level 3 and 2 on the food chain are _________.
- 7. The science that studies the heredity traits.
- 8. Climate change affects _______.
- 9. The result from selecrive breeding of two different varieties.
Down
- 1. The amount of biomass produced through photosynthesis per unit area and time by plants.
- 5. The variety of living organisms found on earth.