The Xylem transports water and minerals while the Phloem transport organic nutrients
3.8 billion – 2.5 billion years ago
The Archean is the name of the age which started with the shaping Earth. This time of Earth's history endured quite a while, over 2.5 billion years. When the archean age ended the earth was just coming alive.
The subcutaneous layer is mainly made of <u>fat tissue.</u>
One of the three layers of skin is the subcutaneous layer, which lies below the dermis. The deepest layer of the skin is primarily made up of fat. It also contains collagen, blood vessels and nerves. The body's fat creates a layer that protects the organs from damage and acts as insulation against the cold. Additionally, it gives the skin structural support.
The depth of the subcutaneous layer in the body's abdominal region, which frequently has higher percentages of fat, can reach three centimeters. The thickness is determined by the person's overall body fat percentage. Other places, like the eyelids, have a subcutaneous layer that is as thin as 1 millimeter and devoid of fat.
The subcutaneous layer has many functions, including insulation, thermoregulation, shock absorption, structural support, and energy storage.
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The goal was to orbit a spacecraft around the Earth. It has people in it. So the answer is B.