Explanation:
A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pair
in biology it is used and found in DNA and proteins
in DNA they hold together building blocks that make strand of DNA however in protein covalent peptide bond that links amino acid in protein chain
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Which substances are responsible for accelerating chemical reactions in cells? amino acids enzymes nucleic acids lipids.
Answer:
Scientific Law
Explanation:
Scientific Law is a statement or fact meant to explain, in concise terms, an action or set of instructions. It is generally accepted to be true and universal, and can sometimes be expressed in terms of a mathematical equasion. Scientific laws are similar to mathematical postulates.
All cells in the ciliated columnar epithelium reach the basement membrane, but only cells that reach the free surface have cilia.
<h3>What is an
epithelium?</h3>
An epithelium is a specialized layer of cells that play different roles in the organism (e.g., transport of substances, digestion, etc).
Epithelia are one of the four types of tissues that form the body, which also include connective tissue, muscle tissue, and nervous tissue.
The ciliated columnar epithelium is a special class of epithelium that contain cilia that are used to move substances across their cellular surfaces.
In conclusion, all cells in the ciliated columnar epithelium reach the basement membrane, but only cells that reach the free surface have cilia.
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C.
Water vapor is the "fuel" for the hurricanes because it releases the "latent heat of condensation" when it condenses to form clouds and rain, warming the surrounding air. (This heat energy was absorbed by the water vapor when it was evaporated from the warm ocean surface, cooling the ocean in the process