Question

1. Which of the following is true of flatworms and humans, but not of ferns?

2. Which of the following structures does a fern have, but a flatworm and a human don’t?

3. Which of the following will you find in a human, but not in a flatworm?

Answer 1

1 They are heterotrophic
2 Chloroplast
3 A respiratory system in the lungs