A. Soil erosion
the watering of the plants and the sowing and reaping of the crops would lead to erosion
D. Producers/autotrophs can convert energy from the sun into a form that is available for consumers/heterotrophs to use.
<span>The importance of sexual reproduction in angiosperms is same as sexual reproduction of others organims that is to provide genetic variation. However, sexual reproduction of angiosperms also produce seed. Production of seed with fruit is what specific to angiosperm this phylum. so you can find some points regard the advantanges of producing seeds in angiosperms. This can used as addition point.
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The pulmonary veins transport oxygenated blood back to the heart from the lungs, while the pulmonary arteries move deoxygenated blood from the heart to the lungs.)
The structure and shape of each type of human cell depends on what function it will perform in the body. For example, red blood cells (RBCs) are very small, flat discs, which allows them to easily fit through narrow capillaries and around sharp corners in the circulatory system to deliver oxygen throughout the body.
The elongated shape of muscle cells allows the contraction proteins to line up in an overlapping pattern that makes muscle flexing possible.
And human sperm cells’ structures allow them to “swim” long distances to reach an egg for fertilization
