Question

highlight the letter of the correct choice.

1. organisms that are photoautotrophs include

a. plants.
b. certain fungi.
c. all bacteria.
d. two of the above

1. which of the following organisms are omnivores?

a. lions
b. frogs
c. rabbits
d. crows

Explanation:

Question 1

Photoautotrophs are organisms that use light energy to synthesize organic compounds (like glucose) from inorganic substances (like carbon dioxide and water). Plants are photoautotrophs as they perform photosynthesis. Fungi are heterotrophs (they obtain nutrients from organic matter), so option b is incorrect. Not all bacteria are photoautotrophs; some are heterotrophs or chemoautotrophs, so option c is incorrect. Thus, only option a is correct.

Omnivores are organisms that eat both plants and animals. Lions are carnivores (eat only animals), frogs are mostly carnivores (eat insects, small animals), rabbits are herbivores (eat plants). Crows eat a variety of foods including plants (seeds, fruits) and animals (insects, small animals), so they are omnivores.

Answer:

a. plants.

Question 2