Which type of star system is pictured?

Biology

2 answers:

lions [1.4K]3 years ago

7 0

You didn’t include a photo

Tema [17]3 years ago

7 0

Where is the photo? We need an image to respond bro -

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Which of the following best explains the difference between micro and macro evolution? A. Microevolution is based on ideas, whil

gtnhenbr [62]

Answer: C. Microevolution is small scale change to the gene pool of a population while macroevolution is larger scale changes that lead to speciation.

Explanation:

Microevolution can be defined as a small change in the gene frequency within a gene pool of the species, these changes will be inherited by the organisms and there will not be any drastic change at the species level. But in case of macroevolution the large scale change occurs at the genetic level, which retain for long. This leads to development of new organisms or results in speciation.

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3 years ago

Doctors have had luck transplanting hearts and lungs. But science has not been very successful in growing hearts and lungs. Why?

elena55 [62]

Hello.

Man cannot scientifically recreate a heart or lung in a lab. It just doesn’t work that way. Therefore, your answer is B.

I hope this helps you!
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3 years ago

Read 2 more answers

Consider the motion diagram. It illustrates a car's velocity (V) and acceleration (A). Determine is there is a change in either

aleksandrvk [35]

Answer:

Change in velocity: yes

Change in acceleration: no

Explanation:

The diagram of the problem is missing: find it in attachment.

In the diagram, there are represented:

- The velocity of the car, as a vector labelled with V

- The acceleration of the car, as a vector labelled with A

The directions of the vector represent the direction of the velocity and the acceleration, while the length of the arrows represent the magnitude of the two quantities.

We observe that:

- For the velocity, the direction is always to the right; however, the length of the arrow decreases, so the magnitude of the velocity keeps decreasing

- For the acceleration, the direction is always to the left; and the length of the arrow remains constant, therefore the magnitude of the acceleration does not change.

This means that the car is moving to the right, but it is slowing down, since the direction of the acceleration is opposite to the direction of the velocity.