Question

1. what is the ultimate source of energy for almost all organisms? mark only one oval. a. producers b. consumers c. the sun d. bacteria
2. 8. which of these consumers might depend on a rabbit for its energy? mark only one oval. a. grasshopper b. coyote c. cow d. horse
3. 9. a consumer that eats only producers is called a(n) mark only one oval. a. omnivore b. carnivore c. autotroph d. herbivore
4. 10. what term is used to describe a linear sequence in which energy is transmitted as each organism eats another organism? mark only one oval. a. food web b. food chain c. trophic level d. energy pyramid
5. 11. if an insect eats a plant and a bird eats the insect, about how much energy is transferred from the plant to the bird? mark only one oval. a. 90 percent b. 50 percent c. 10 percent d. 1 percent

Explanation:

• For the first question, the sun is the ultimate energy source for almost all organisms as it provides light energy for photosynthesis in producers.
• For the second question, a coyote is a predator that might eat a rabbit for energy. Grasshoppers eat plants, cows and horses are herbivores that mainly eat grass - like plants.
• For the third question, a consumer that eats only producers is a herbivore. Omnivores eat both plants and animals, carnivores eat other animals, and autotrophs are producers that make their own food.
• For the fourth question, a linear sequence of energy transfer as organisms eat one another is a food chain. A food web is a complex network of food chains, trophic level refers to the position an organism occupies in a food chain or web, and an energy pyramid shows the amount of energy at each trophic level.
• For the fifth question, in an energy transfer between trophic levels, typically about 10 percent of the energy is passed on.

Answer:

1. c. the sun
2. b. coyote
3. d. herbivore
4. b. food chain
5. c. 10 percent