Answer: is enclosed by two membranes, be responsible for protein synthesis, has a folded inner membrane called cristae
Explanation:
Mitochondria are considering organelles(mitochondrion, singular) which are bounded.
The mitochondria are enclosed by two membranes and have a folded inner membrane called cristae(crest or plume) and it is there to give the inner membrane shape.
Answer:
stationary
Explanation:
It's called a stationary front because the gases remain stationary next to each other because neither is strong enough to replace another.
Cells need "oxygen" for the efficient use of glucose in cellular respiration.
<span>Organisms that have ventilation systems will draw in air (or
water) that is rich in oxygen and will draw out air that has carbon dioxide. This
is essential for a multicellular organism to thrive because carbon dioxide is
harmful for an organism since carbon dioxide (CO2) is a waste product. Such is
the system that contain veins, capillaries and arteries. On the other hand, organisms
that don’t have ventilation system, can survive without it because they are
single-celled and the path for the nutrients and needed oxygen is so short that
they can efficiently exchange gases at the surface.</span>