Answer:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism,
Answer:Dont worry about me, I just added this answer so the other person can get their brainliest because they definetly deserve it Explanation:
Explanation:
Answer:
The deoxygenated blood enters the heart from the superior and inferior vena cava and pumped into the right atria then pushed down into the right ventricle from there the blood is pumped out through the pulmonary artery (the only place in the body where an artery has deoxygenated blood) to the lungs. The blood gets oxygenated and returns to the heart via the pulmonary vein (the only place in the body where a vein carries oxygenated blood) and pushed into the left atria the pumped into the left ventricle and out to the body via the aorta.
Explanation:
Theories are an idea that science have and they aren’t always right so false