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abruzzese [7]
3 years ago
11

Explain why a control group is important to a controlled experiment

Biology
1 answer:
sashaice [31]3 years ago
4 0

A control group is important to a controlled experiment because it is used in an experiment to establish its validity.

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A hypertonic solution has:
BaLLatris [955]

A hypertonic solution has:

Fewer water molecules outside the cell than are inside the cell. Thus, option "A" is correct.

<h3>What is hypertonic solution?</h3>
  1. The cell is in a hypertonic solution because it lost water through osmosis and shrunk.
  2. A hypertonic solution contains more solute molecules compared to solvent molecules while the hypotonic solution has more solvent molecules than solute molecules.
  3. When a plant cell is placed in a hypertonic solution it loses water through osmosis and shrinks.
  4. An animal cell placed in a hypotonic solution absorbs water through osmosis, increases in size and then bursts. Plant cell, on the other hand, does not burst when placed in a hypotonic solution as it contains a cellulose cell wall.

Thus, option "A" is correct.

To learn more about hypertonic solution  click here:

brainly.com/question/14507544

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7 0
2 years ago
What is the relationship between structure and function in the selected muscle?
vova2212 [387]

Answer:

skeleton muscle .......................................

5 0
3 years ago
Organisms with advantageous adaptations are more likely to survive and reproduce than organisms without the advantageous adaptat
expeople1 [14]

Natural selection refers to the phenomenon by which the species in a population possessing the tendency to get adapted in a condition enhance in numbers in comparison to those who exhibit fewer adaptation capacities over a number of generations.  

In other words, it can be stated as the non-random and differential development of distinct genotypes function to sustain favorable variant and to eradicate less favorable variants. Some of the conditions are required for the process of natural selection to take place.  

These are heredity, reproduction, variation in individual characters, and variation in the fitness of organisms among the members of the population. If the conditions are met, then the phenomenon of natural selection occurs by default.  


5 0
3 years ago
Why would it be advantageous to observe mold colonies on an agar plate?
Alika [10]
I think it would be advantageous to observe mold colonies on an agar plate because one is able to observe colony structures, pigmentation, among others.  Colony forming units are the individual colonies of bacteria,yeasts or mold. A colony of bacteria or yeast refers to a mass of individual cells of same organism, growing together. 
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4 years ago
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Oxygen and carbon dioxide are exchanged in the lungs by
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ALVEOLI are the very small air sacs where the exchange of oxygen and carbon dioxide takes place. CAPILLARIES are blood vessels in the walls of the alveoli. Blood passes through the capillaries, entering through your PULMONARY ARTERY and leaving via your PULMONARY VEIN.
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