Answer:
They are the digestive and the respiratory systems (O2 as nutrient and CO2 as waste)
Answer:
The formation of large molecules takes place by the addition of smaller molecules together. These small molecules are called as monomers and larger molecule formed by the addition of these monomers are called as polymer. The process of formation of polymer from monomers is known as polymerization.
Explanation:
hmu if you need anything els!
A. Substrate
B. Active site
C. enzyme
D. Products
ANSWER: The correct answer is CAPILLARIES
EXPLANATION: Arteries are the muscular wall tube that carries oxygenated blood from the heart to other part of the body. The arteries extend outward from the heart, and form capillaries.
The capillaries are hairlike thinnest blood vessels, that helps to join the arteries and ventricles together. The blood in the arteries extends to the capillaries of the organs where the blood is supplied, and then moves out to from the organ via the ventricles.
The capillary starts from the part of the arteries that are very thin.
Answer:
Because of the natural selection
Explanation:
Variation in nature is all we can found out there. Through millions of years nature went with the survival of the fittests, like Darwin said.
When we talk about artificial selection, we talk about humans getting involve on that selection, but we deppend on variation in nature. We can't "create" a new species, but we do can choose the genetic traits we want to prosper and which no.