Question

Which of the following organisms is a vertebrate?
a. fish
b. insect
c. sponge
d. starfish
I think its a, fish- Am i right?

Which of the following best describes a characteristic that distinguishes animals from plants?
a. Plant cells have cell walls containing cellulose, and animal cells lack a cell wall.
b. Plants are photoautotrophs, and animals are chemoautotrophs.
c. Plants digest their food externally, and animals digest their food inside their bodies.
d. Plants reproduce by binary fission, and animals reproduce sexually.
I think its a, Am i right?

Answer 1

Yes, you're right. On the topic of vertebrates, you just have to think about whether the animal has a backbone. Actually, if it has ANY bones, you can be sure it's a vertebrate.

Answer 2

First question, you are right - vertebrates have backbones. For the second question, animals are not autotrophic of any kind - they are heterotrophs. Do plants digest food? Do plants reproduce by binary fission? So you're right on both questions.

Answer 3

so im right on both?

Answer 4

thank you!

Answer 5

Yep, you are right on both.

Answer 6

Cell wall is a characteristic feature of Plants. No animal cell has a cell wall. Fungi also have cell wall but there cell wall is made up of chitin and not cellulose.