<span>A grassland is a biome having predominantly grasses, and some woody shrubs, instead of trees and forests. So, Yes they do.</span>
About half of a body’s weight is muscle. Muscle tissue is of three distinct types: skeletal, cardiac, and smooth. Each type has a unique structure and a specific role. Skeletal muscle<span> moves bones. </span>Cardiac muscle<span> contracts the heart to pump blood. The </span>smooth muscle<span> tissue that changes shape to facilitate bodily functions of intestine and bladder. Here are more details about the structure and function of each type of muscle tissue in the human muscular system. </span>
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Petals are modified leaves that surround the reproductive parts of flowers. They are often brightly colored or unusually shaped to attract pollinators. ... Petals are usually accompanied by another set of modified leaves called sepals, that collectively form the calyx and lie just beneath the corolla.
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Phytoplanktons are photosythetic organisms found near ocean surface and provide food to a wide variety of sea creatures like whale, shrimp, jelly fish etc. They also rely on nutrients such ad nitrates, phosphate for their development. They maintain a balance ecosystem and food web in ocean.
