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Marina CMI [18]
3 years ago
6

Provide at least three reasons why friction is needed.

Biology
2 answers:
o-na [289]3 years ago
7 0

Answer:

Friction allows people and objects to move. It provides traction for an object to start moving or change direction. It can also give people a better grip on objects. Finally, friction keeps objects in place when they are set down.

Explanation:

Sample Response

Oduvanchick [21]3 years ago
4 0

Answer:

Although you normally hear about trying to reduce or eliminate friction, it actually has some important uses.

Since friction is a resistance force that slows down or prevents motion, it is necessary in many applications where you might want to hold items or do things and prevent slipping or sliding. In those cases, there is an advantage of having friction.

Quite often uses of frction can be seen from how things would be without friction. Without friction, you would not be able to walk, drive a car, or hold objects. Pens and pencils would not work.

Explanation:

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The proportions of the bases are consistent within a species; however they do vary between species. Using the base-pair rules, c
Snezhnost [94]

Answer:

The correct answer would be:

                  A         G          C         T

Human:   31          19          19       31

Cow:         28         22      22         28

Salmon:     29       21       21         29

Wheat        27      23        23        27

Yeast         31         19       19         31

Explanation:

According to the rule of Chargaff which states or explains the amount of the A, T, G, and C bases in the DNA molecule. It says that the DNA of any organism should have a pyrimidine and purine ratio of 1:1. This means the amount of A would be equal to T and the amount G should be equal to the amount of C.

It also says that the amount of a and G would be equal to the amount of C and T. So on the base of this we can find the missing value in the table:

                    A         G          C         T

Human:   31          19          19       31   (A= T and G=C)

Cow:         28         22      22         28  (A= T and G=C)

Salmon:     29       21       21         29   (A= T and G=C)

Wheat        27      23        23        27 (100 - A+T = G+C)

Yeast         31         19       19         31 (A= T and G=C)

5 0
3 years ago
Which of the following statements about the sympathetic nervous system is true? A. Stimulation of the sympathetic nervous system
geniusboy [140]

Answer:

D. The nerves exit the central nervous system in the head and from the lumbar spine.

Explanation:

The preganglionic neurons transmit the nerve impulses through the cranial or spinal nerves that arise from the brain, to the postganglionic neurons from where the nerve fibers that relay these nerve signals to the different viscera and effector organs, located along the spinal cord

6 0
3 years ago
what is the process of photosynthesis; what is the one component in photosynthesis that is not recycled and must be constantly a
Ugo [173]

Green plants and certain other animals use a process called photosynthesis to convert light energy into chemical energy. Sunlight is the primary, non-recyclable, and easily accessible component of photosynthesis.

In the electromagnetic radiation that the Sun emits, sunlight is included. Water (H2O) and carbon dioxide (CO2) are ingested by plants during photosynthesis from the soil and atmosphere. In contrast to carbon dioxide, which is reduced within the plant cell and obtains electrons, water is oxidised within the cell of the plant. Due to this, carbon dioxide and water are converted into glucose and oxygen, respectively.

We can therefore conclude that green plants and some other animals convert light energy into chemical energy through a process known as photosynthesis. The most important, easily accessible, non-recyclable element in photosynthesis is sunlight.

LEARN MORE ABOUT PHOTOSYNTHESIS HERE:

brainly.com/question/26494694

#SPJ4

3 0
1 year ago
The scientific methon is limited to investigating physical phenomenona that are which of the following
kvasek [131]
  1. Observable
  2. Repeatable  
  3. Falsifisable  
  4. Measurable
4 0
3 years ago
Under which business structure might Cassie lose ownership of her app and control over the business?
xxTIMURxx [149]

Under which business structure might Cassie lose ownership of her app and control over the business?

Corporation

4 0
3 years ago
Read 2 more answers
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