Which statement is true for single-celled organisms?
a.
they are often harmless.
b.
they always cause disease.
c.
they only live inside humans.
d.
they reproduce in a complicated process.

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.