Answer:
300% - 400%
Explanation:
The cardiac reserve is in the range of 300 to 400 percent (300% - 400%
) in normal young adults, while this percentage can be increased to 600% in trained athletes
Arthropods has the bilateral symmetry !
so answer is B !
There are four major classes of biological macromolecules:
carbohydrates.
lipids.
proteins.
nucleic acids.
The outer layer of the skin covering the exterior body surface<span> of vertebrates ... the primary tissue of higher plants composed of </span>thin<span>-walled </span>cells<span> that remain capable of ... a swelling on a plant stem consisting of overlapping immature </span>leaves<span> or petals ... Older xylem </span>near<span> the center of a woody stem that no longer conducts water.</span>
<span> white blood cells tend to have a higher surface to volume ratio then other cells because the are more amorphous</span>
