3 years ago

Beryllium is one of the elements that scientist can use as a cosmic clock to determine age true or false

Biology

1 answer:

wariber [46]3 years ago

3 0

Answer:

False

Explanation:

Beryllium is used in alloys with copper or nickel to make gyroscopes, springs, electrical contacts, spot-welding electrodes and non-sparking tools. Mixing beryllium with these metals increases their electrical and thermal conductivity. Other beryllium alloys are used as structural materials for high-speed aircraft, missiles, spacecraft and communication satellites. Beryllium is also used in nuclear reactors as a reflector or moderator of neutrons.

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What organs/systems is affected by the sympathetic nervous system but is NOT affected by the parasympathetic nervous system?

Mariulka [41]

Answer: cellular metabolism

Explanation:

Cellular metabolism is chemical reactions that takes place in living organisms so that they will be able to maintain life. Cellular metabolism is made up of thousands of genes, metabolites and proteins.

Cellular metabolism is affected by the sympathetic nervous system but is not affected by the parasympathetic nervous system.

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3 years ago

In this lab, biology students were directed to use indicators as chemical detection tools, to analyze a variety of foods for the

puteri [66]

<span>The Answer is B: They could use the Benedict's test; it would not have a positive reaction for sucrose but it would for the other three sugars.</span>

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3 years ago

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Which vector contained the infectious agent, Yersinia pestis?

malfutka [58]

Answer:

Yersinia pestis is the causative agent of plague

Explanation:

Rodents, such as rats, carry the disease. It is spread by their fleas.

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2 years ago

Is the cell membrane the only source that supports and structure in plant and animals cells?