1. what can muscle cells do that other cells cannot?

2. why are skeletal and cardiac muscles striated?

Q1. Muscles are made of muscle cells that are able to contract. They are only cells in the organisms able to do that. Due to contraction, cells change their shape  and length. This enables some organ activity (such as heart, or many other organs that are surrounded by smooth muscles that helps them perform their function) or body movements.

Q2. Striated muscles are called striated because of the series of sarcomeres, basic units of striated muscles.  They are made up of long cylindrical fiber and attach to the bones. Contraction of these muscles is voluntary except for the heart muscles. During these contractions, the muscle is extended by the action of an antagonist muscle.

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

starchy vegetablesnon-starchy vegetables

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.

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If you get a map and put the countries a states all together it forms all one piece you can also tell because of the earth quakes