Select two functions of the circulatory system.

a
to distribute blood throughout the body

b
to coordinate the actions of the body

c
to secrete hormones in different areas of the body

d
to transport oxygen to tissues throughout the body

e
to remove excess waste materials from the body

f
to the body respond to external stimuli

D and A

Explanation:

to send blood throughout body and oxygen to balance it for air and survival

a adaptation is when organism changes itself to fit the environment

ex. when its cold outside i wear a jacket

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igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.