Biology, 01.10.2019 03:00 csciahetano

Muscles in animals are often found in pairs, because
a. muscles need to be able to both push and pull.
b. muscles can only push.
c. muscles can only produce a force as they relax.
d. muscles can only pull.

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Muscles in animals are often found in pairs, because
a. muscles need to be able to both push a...