Ascientist finds an unusual living thing and decides to study it.
which observation indicates that the living thing is among the smallest types of living things?
a.
it possesses a hard outer shell.
b.
it possesses a membrane-bound nucleus.
c.
it does not have a nucleus.
d.
it is multicellular.

silty loam

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what is the statement?

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.