Weathering and erosion played a big role in forming the grand canyon. The rock was being weathered, most likely mechanical weathering, and then it eroded away. Think of a pebble that is in running water. When you pick it up, it is smooth, right. But before, it was pointy. So, the grand canyon was once a big rock, and weathering broke through it making it one of the wonders of the USA.
Answer:
A. Phospholids and B. Steroids.
Explanation:
Lipids are fatty waxy molecules which are smaller than proteins that completes a lot of basic structures in both animals and plants inclusive.
They are been used by the body alongside proteins, sugars, and minerals. They can be found in many parts of a human: cell membranes, cholesterol, blood cells, and in the brain, to name a few ways the body uses them. The commonest of lipids are the steroid lipids which are seen in female oestrogen and in the male testosterone.
An organism's body is constructed using information in DNA or genetic material in the nucleus of cells.
DNA consists of sequences of nucleotide bases, which can be transcribed into mRNA, tRNA, and rRNA. The RNAs will then be transported to the cytosol of the cell and used in translation, where the codons on mRNA will be translated into specific sequences of polypeptide chains (aka. "immature proteins"), which will then be processed to become functional proteins. These functional proteins will then be the building blocks of the organism's body.
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Answer: The presence of small amounts of heat-trapping greenhouse gases in the atmosphere warms Earth's surface, resulting in a planet that sustains liquid water and life. Changes in climate conditions can affect the health and function of ecosystems and the survival of entire species.
Explanation: