Answer:
3=8908-=698=49=304=+74950=405=0381=01=20
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Explanation:
Proteins catalyze reactions, part of the immune system, transport molecules such as oxygen, and transmit messages from cell to cell.
Proteins are very large molecules made of basic units known as aminoacids. Proteins consist of carbon (C), hydrogen (H), nitrogen (N), oxygen (O), and sulfur (S).
Protein molecules are produced by twisted and folded strands of amino acids. Proteins are actively involved in the most important as well as basic aspects of life. These include metabolism, cellular communication, movement, molecular recognition, and defense.
The shape of structural proteins allows them to form essential structures of the body. Collagen holds most of the body tissues together, a protein with a fiber shape. Structural protein Keratin creates a network of waterproof fibers on the outer layer of the skin.
The shape of functional proteins enables them to contribute to the chemical processes of the body. Functional proteins include cell membrane receptors, hormones, growth factors, and enzymes.
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Valuable ore deposits and gem crystals are often associated with _____. a. oceans b.oil deposits c. thin crustal areas d. igneous intrusions Which of the following shows a possible sequence that leads to the formation of sedimentary rocks? a. squeezing, heating, bending, folding b. rising, weathering, erosion c. weathering deposition, compaction, cementation d. melting, cooling, crystallization PLZ HELP!! :)
Valuable ore deposits and gem crystals are often associated with igneous intrusions and The possible sequence that leads to the formation of sedimentary rocks is weathering, deposition, compaction, cementation. Thus, the correct options are option D and C.
Sedimentary rocks are types of rocks that are formed through the accumulation and lithification (compaction and cementation) of sediment particles. Sediments can include fragments of rocks, minerals, organic material, and other debris that are transported and deposited by water, wind, ice, or gravity.
Over time, these sediments undergo compaction and cementation processes, where the particles are pressed together and bound by minerals, creating solid rock formations. Sedimentary rocks often exhibit distinct layers or stratification, and they can contain fossils and provide valuable information about Earth's history and past environments.
Examples of sedimentary rocks include sandstone, limestone, shale, and conglomerate.
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O A. lonic
B. Metallic
OC. Macromolecular
D. Chemical
Reset Selection
The correct answer is option B. Metallic.
Metal is composed of a huge structure of atoms arranged in a regular pattern. Electrons from the outer shell of a metal atom are delocalized and can move freely throughout the structure. This sharing of delocalized electrons results in strong metal bonds.
Metallic bonds are electrostatic attraction between metal cations and the negatively charged ocean of delocalized electrons. The sea of delocalized electrons contains only valence electrons, not core electrons.
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B.metallic is the answer hope this helped