11.1 The Science of Ecology Lesson 11.1: True or False Name Class Date Write true if the statement is true or false if the statement is false. 1. Biotic factors include sunlight, soil, temperature, and water. 2. Like nutrients and water, energy also recycles through an ecosystem. 3. An ecosystem consists of all the biotic and abiotic factors in an area and their interactions. 4. Herbivores are a necessary link between producers and other consumers. 5. A niche refers to the place an organism lives within its ecosystem. 6. Dung beetles eat animal feces. 7. Autotrophs make their own food. 8. Organisms use 90% of the available energy at each trophic level. 9. Carnivores include lions, polar bears, hawks, frogs, salmon, and deer. 10. Biomass increases at the upper levels of a food chain. 11. Producers occupy the first trophic level. 12. Scavengers include vultures and raccoons. 13. In a complex ecosystem, it is likely that two different species will occupy the same niche. 14. The habitat is the role of a species in its ecosystem. 15. A food web shows how energy flows through an ecosystem.

See explanation below

Explanation:

1. Biotic factors include sunlight, soil, temperature, and water. FALSE

Biotic factors include animals, plants, fungi, bacteria and protists.

2. Like nutrients and water, energy also recycles through an ecosystem. FALSE

3. An ecosystem consists of all the biotic and abiotic factors in an area and their interactions. TRUE

4. Herbivores are a necessary link between producers and other consumers. TRUE

5. A niche refers to the place an organism lives within its ecosystem. TRUE

6. Dung beetles eat animal feces. TRUE

7. Autotrophs make their own food. TRUE

8. Organisms use 90% of the available energy at each trophic level. FALSE

9. Carnivores include lions, polar bears, hawks, frogs, salmon, and deer. FALSE

Deer is a herbivore.

10. Biomass increases at the upper levels of a food chain. FALSE

11. Producers occupy the first trophic level. TRUE

12. Scavengers include vultures and raccoons. TRUE

13. In a complex ecosystem, it is likely that two different species will occupy the same niche. FALSE

14. The habitat is the role of a species in its ecosystem. FALSE

15. A food web shows how energy flows through an ecosystem. TRUE

hey there!

so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

hope this

tobey