Carbohydrates - glucose
Lipids - fatty acids.
protein - figure 4
Nucleic acid - figure 3
Answer:
False.
Explanation:
The skeletal system is composed of bones that are known as connective living tissues. The skeletal system helps to provide lifeless support for the whole body and also provide a system of controls on which muscles perform to develop a movement and protection to the body.
Bones help to support the structure of the body and also helps to supplies the minerals that are important for many biological processes in the body. Various kinds of blood cells are produced in the bone marrow which is known as soft tissue and present inside the bone that helps to restore the inner cavities in some bones.
Answer:
two capillary beds
Explanation:
Capillary beds are networks of capillaries that supply blood to the organs and/or areas of the body, in which nutrients and gas exchange (i.e., O2 and CO2) between red blood cells and tissues take place. Smaller arteries (i.e., arterioles) diverge into capillary beds composed of 10 to 100 capillaries, the smallest blood vessels in the body that connect the arterioles and the venules. Red blood cells usually flow into a capillary bed from a metarteriole (i.e., a microvessel that connects arterioles and capillaries). Red blood cells sometimes pass through two capillary beds before reaching the heart. The left heart ventricle is a muscle required for pumping red O2-rich blood out through the aortic valve into the aorta, whereas arteries are large blood vessels that branch into arterioles in order to carry blood to the capillary beds.
Answer:
About 20 percent of all oxygen produced comes from the Amazon.
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