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Kobotan [32]
4 years ago
11

The images show two different types of Galapagos tortoises that scientists believe descended from the same species. The first ty

pe (left) lives on islands that have high vegetation and few grasses. The second type (right) lives on an island that has large amounts of grasses and low-lying shrubs. What explains the differences in the second turtle's characteristics?
A. The environment triggered a gene mutation in neck length to help the second turtle survive.
B.Mutations are random, so the high number of individuals with longer necks is simply by chance.
C. turtles with genes for long necks had a better chance of surviving to reach reproductive age.
D.Turtles with short necks completely lacked adaptations for survival, so they died off.
Physics
2 answers:
Leya [2.2K]4 years ago
4 0

Answer:

The answer is C

Explanation:

Turtles with genes for long necks had a better chance of surviving to reach reproductive age.

vichka [17]4 years ago
3 0

Answer:

C. turtles with genes for long necks had a better chance of surviving to reach reproductive age.

Explanation:

The turtles that had long necks were more fit to the environmnet in which they were lovated and were able to grow larger and have more reproductive time because of their ability to feed on grass and small shrubs, this helped them always haev food available, and made them the dominant gene eventually.

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Does research lessen its value for its being cyclical? Enumerate Two Possible advantages of a cyclical research
Tanya [424]

Answer:

Research usually is a cyclical process because it starts with a problem and ends with a problem.

This is bad or lessens the value of the research?

No, because there are problems that in nature are cyclical, (for example the related ones to action research).

And it also may be a good thing, solving one "problem" leads to another problem, but in the process of solving the first one we may win a lot of knowledge, and the same happens with the next one, and so on.

Two possible advantages of cyclical research are:

Knowing beforehand that the research will be cyclical, will allow us to estimate better the amount of time and money needed because we already know (more or less) where to aim.

It also may lead to a better end product, as we already know that we must focus in solving one thing and then we can focus in the next one.

Another possible advantage may be that we know that after the work, there will be a new thing to research, and it is fun, so if you are curious enough this may be a good thing (especially in scientific areas, physics, chemistry, etc).

7 0
3 years ago
A car changes its speed by 2 meters per second each second. What is its acceleration?
KatRina [158]

Answer:

2 m/s²

Explanation:

If changes speed by 2 meters per second each second means:

2 m/s²

Because it changes constantly it veloctity.

Remember the aceleration changes the velocity.

4 0
3 years ago
Read 2 more answers
A man is dragging a trunk up the loading ramp of a mover’s truck. The ramp has a slope angle of 20.0°, and the man pulls upward
AleksandrR [38]

Answer:

(a)  104 N

(b) 52 N

Explanation:

Given Data

Angle of inclination of the ramp: 20°

F makes an angle of 30° with the ramp

The component of F parallel to the ramp is Fx = 90 N.  

The component of F perpendicular to the ramp is Fy.

(a)  

Let the +x-direction be up the incline and the +y-direction by the perpendicular to the surface of the incline.  

Resolve F into its x-component from Pythagorean theorem:  

Fx=Fcos30°

Solve for F:  

F= Fx/cos30°  

Substitute for Fx from given data:  

Fx=90 N/cos30°

   =104 N

(b) Resolve r into its y-component from Pythagorean theorem:

     Fy = Fsin 30°

   Substitute for F from part (a):

     Fy = (104 N) (sin 30°)  

          = 52 N  

5 0
3 years ago
A sound wave is an example of an electromagnetic wave in nature
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7 0
3 years ago
If you are doing a "rowing" motion, what muscle of the shoulder are you using?
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