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Answer from: chloehall2269
animals with backbones include mammals, birds, reptiles, amphibians, and fish. Vertebrates make up just 3 per cent of all known animal species.
Explanation:
Answer from: Quest
spiders belong to a group of arachnids.
arachnids have the following traits :
they have two body parts.
they have eight legs unlike insects which have 6 legs.
they have no wings.
these traits distinguish them from insects.
the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.
this is because the evolution of one species is independent of the other species.
Answer from: Quest
a- all cells come from pre-existing cells
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