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monitta
3 years ago
12

A scientist is going to perform and experiment to see how a new antibiotic affects a strain of bacteria. Which of the following

peices of equiment would be most helpful to the scientis during the experiment?
A. A bunser burner

B. A beaker

C. A spring scale

D. A microscope
Biology
2 answers:
Vinvika [58]3 years ago
7 0
I think the correct one is A
Alex73 [517]3 years ago
6 0
Its between A and B what do u think?
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Answer:

5;15

Explanation:

Local muscular strength and local muscular endurance are two important qualities of muscle functioning. The maximum weight a muscle can lift is indicated by Local muscular strength while the number of repetitions of particular task a muscle can perform without being exhausted is indicated by local muscular endurance. These both tasks are frequently used in our daily life

For example if you can pull 50 kg weight that would be your local muscle strength and if u can pull it 20 times that would be your local muscle endurance.

While performing the the intensity of resistance exercise during assessment if you pull the 50 kg weight less than 5 times it would be considered as local muscular strength and if you pull it greater than 15 times it would be considered as local muscular endurance.

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3 years ago
A student made a model of a cell. First, she filled a clear plastic bag with gelatin.
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Another possible answer would be D since they model does not show the process of cellular respiration where cells undergo this process to create ATP in the mitochondria.
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3 years ago
If a small droplet of ordinary fat molecules is suspended in water, the fat molecules form a "ball of spaghetti" with no particu
kolbaska11 [484]

Answer:

Option 1, a charged end and a noncharged end

Explanation:

Complete question

If a small droplet of ordinary fat is suspended in water, the fat molecules form a "ball of spaghetti" with no particular orientation. But if a droplet of phospholipid molecules is put in water, all the molecules point outward, toward the water. Phospholipids are forced into this orientation because phospholipids have _____

  1.  a charged end and a noncharged end
  2.  three fatty acid molecules, all pointing in different directions
  3.  two fatty acid molecules pointing in different directions
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  5.  two charged ends

Solution

The structure of phospholipids consists of the following groups and molecules –  

a) A glycerol molecule  

b) Fatty acids (2 in numbers) – It is hydrophobic as it is uncharged and non polar in nature

c) Phosphate group (with alcohol) – It is hydrophilic as it is negatively charged and polar in nature.  

When the phospholipids are placed in  water, the molecule rearranges itself in a way that the hydrophobic head face inside and the hydrophilic head face outside thereby forming micelles.

Hence, option 1 is correct

3 0
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