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musickatia [10]
3 years ago
9

Periodic table below,which elements are predominantly gases with low densities

Biology
1 answer:
Svetach [21]3 years ago
7 0
All of the noble gases which are helium neon argon krypton
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The function of antibodies is to A. inject toxins into living pathogens. B. mark pathogenic cells for destruction. C. act as Tol
Liono4ka [1.6K]

Answer:

Mark pathogenic cells for destruction. (Ans. B)

Explanation:

Antibodies are generated by the plasma cells, and once these secreted, they attach quickly to the surface of the toxin and stop the toxin from infecting the normal body cell by blocking key extracellular sites.

Antibodies also help to mark pathogens for destruction by the help of macrophages or neutrophils and they are known as phagocytic cells because they are highly excited to macro-molecules complexed with antibodies.

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3 years ago
What does an enzyme’s structure have to do with a catalytic activity?
igomit [66]

Answer:

Explanation:

The proteins in enzymes are usually globular. The intra and intermolecular bonds that hold proteins in their secondary and tertiary structures are disrupted by changes in temperature and pH. This affects shapes and so the catalytic activity of an enzyme is pH and temperature sensitive.

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3 years ago
What does excessive algae on water cause?
lubasha [3.4K]

Answer:

Eutrophication

Explanation:

Greek word meaning "well-nourished"

5 0
3 years ago
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Finfish, ocean catches, and fish-farming provide approximately what percentage of
Lynna [10]

Answer:

30 percent

Explanation:

Protein is essential in living organisms. They are the building blocks of life and help in the replacement and repair of work out tissues of the body. There are various sources of protein which are plant sources and animal sources.

Animal sources include land and aquatic animals.Sea Finfish, ocean catches, and fish-farming provide approximately 30

percent of animal protein sources consumed by humans in the world.

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Which flower structure develops into a seed after fertilization?
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I believe it's the ovule.
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