According to the article, why did scientists create petrochemicals?
A. Because they were worried about the environment
B. Because rubber from plants harmed the environment
C. Because the U. S. didn't have enough rubber
D. Because World War II had just started
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SUBMIT

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.

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.

answer///multiple alleles;