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Naily [24]
3 years ago
14

What is the difference between commercial and subsistence energy sources?

Biology
1 answer:
Ahat [919]3 years ago
7 0

Answer:

Commercial energy sources are those that are bought and sold, such as coal, oil, and natural gas. Subsistence energy sources are those gathered by individuals for their own immediate needs, such as wood, and animal waste List the major sources of energy in the US from highest percentage to lowest percentage.The most commercialized forms of commercial energy sources are electricity, coal, and advanced petroleum products. They are used for electricity generation on the basis of industrial, agricultural, transportation, and commercial development of the different countries of the modern world.

Subsistence: coal, oil, natural gas; sometimes wood, charcoal, animal waste) subsistence energy source. energy source gathered by individuals for their own immediate needs (typical of rural or developing areas) patterns of energy use.

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Answer:

Phospholipid bilayer.

Explanation:

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It is composed of a lipids bilayer (phospholipids and cholesterol), (phospholipid is a lipid made of glycerol, two fatty acid tails, and a phosphate-linked head group) with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules which hence, regulates the movement of substances in and out of cells. Plasma membranes is very flexible in order to allow cells change form example, red blood cells change shape as they pass through narrow capillaries.

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3 years ago
What is responsible for termination of transcription in eukaryotic protein-coding genes?
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Answer:

<h2>A polyadenylation signal or poly(A) </h2>

Explanation:

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In eukaryotic protein-encoding genes, the cleavage site in the RNA occurs between an upstream( the sequence before the cleavage site) AAUAAA  and a downstream GU-rich, separated by approx 40-60 nucleotides. After they both have been transcribed, a protein knows as CPSF  and another protein called CstF( in humans)  helps in termination.

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D) 20 should be correct

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</span><span>They can be passed on to offspring.
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Why do astronauts eat freeze dried food I space
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2 years ago
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