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barxatty [35]
3 years ago
10

When did people first know about archaebacteria?

Biology
2 answers:
Irina-Kira [14]3 years ago
8 0

Answer:

it was actually discovered in 1922

they didnt know what it actually was until 1977.

C.1977

Explanation:

xeze [42]3 years ago
7 0

Answer:

1977 is when people first knew about archaebacteria

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Match the term to its description. Match Term Definition Astronomical body
Salsk061 [2.6K]

Switch A and D, but other than that your answers are correct.

An astronomical body is an object in space.

A comet is a celestial object consisting of a nucleus of ice and a stream of gas and dust.

A moon is an astronomical body that orbits around a planet.

A galaxy is a system of start held by gravitational attraction.

5 0
3 years ago
If they gave IVs of pure water in the emergency room to people who are dehydrated, what would happen?
Zigmanuir [339]

Answer:

The correct answer is: <em>B. blood cells would be in a hypotonic solution, so water would rush into the cell causing it to expand and eventually burst</em>.

Explanation:

Cells have a certain solute concentration that produces an osmotic pressure of aproximately 300 mOsm. For that reason, IVs solutions must have a solute concentration which equals the cell osmotic pressure. That is usually acomplished by using an aqueous solution of NaCl 0.9% w/v or 5% w/v Glucose.

If an IV of pure water is administrated to a person, the blood cells will be in a hypotonic solution. That is, with a concentration lesser than the concentration inside the cells. Due to the difference in concentration, a net flow of water will be produced from the exterior to the cell interior. As the volume of the cell is increased, the cell membrane is damaged and eventually the cell will collapse.

8 0
3 years ago
Which body type generally would have the highest ratio of water content to total body mass? muscular female thin male muscular m
Alina [70]
<span>Body fat directly influences total body water. The influence of age, gender and fitness is also relative. Women and older persons tend to be lower on total boy water because they have lower fat free masses. Athletes tend to have higher total body water, therefore a younger athletic male would have the highest.</span>
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3 years ago
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Brut [27]

Answer:

apparent magnitude so B

Explanation:

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Live a healthy lifestyle and avoid anything that may trigger such Diseases.

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