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babunello [35]
3 years ago
12

Why doesn’t each child look exactly alike?

Biology
2 answers:
Natali [406]3 years ago
3 0
Because of different DNA handed down from their ancestors, and different environmental effects.
Anuta_ua [19.1K]3 years ago
3 0
The reason no child looks exactly alike is because everyone has a two pairs of copies of their genes, and these tend to be different, making it impossible to look exactly alike. Even twins. You can spot at least one difference, whether it be eye color, a mole, birth mark; the things that distinguish another person from another. This applies not only to children, brothers and sisters, but adults too.  
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A graduated cylinder contains 10mL of water. A rock is dropped into the cylinder and the water level rises to 17mL. What is the
Travka [436]

Answer:

<h3>7 milliliters or 7 cubic centimeters</h3>

Explanation:

1 cubic centimeter = 1 milliliter

You can measure the volume of a rock using cubic centimeters because rocks do not have a defined shaped so you have to use water displacement to find the volume of a rock. If you had a defined shape there are different methods but for an undefined shape( rocks) you use this method.

To solve all you have to do is know how much there was in the container without the rock then how much there was with the rock. Then you take the total and subtract the original measurement you had.

17-10=7 mL or 7 cubic centimeters

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3 years ago
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Explanation:

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3 years ago
Illnesses that pass from one organism to another are called _____ diseases.
Paraphin [41]
Sounds like infectious would fit. 
8 0
3 years ago
Sharks have existed on Earth for centuries, even thousands of years with very little change to their structure. Why do you think
iris [78.8K]

Answer:

Sharks, in their basal form have been on Earth for hundreds of millions of years.  They were the first to develop a stream-like, torpedo shaped body and created a niche for themselves. Their aerodynamic body shape has evolved to allow for efficient and dynamic movement in water. Having a cartilage instead of bones allowed them to grow large and still be relatively light and buoyant . After they've evolved flexible, protruding jaws, there wasn't much to change. They were able to adapt and exploit all the water habitats as the world was changing.

Explanation:

6 0
3 years ago
What is the losing of water from organic molecules, then the joining of these molecules.
Vikentia [17]
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<span>Osmosis then is the movement of water particles from which has water and from which has not and to provide it with the sufficient H2O.<span> 

</span></span><span>The concentration of salt in water affects the rate of osmosis because it will determine how much water should be transported or excreted or to be taken in. The cellular process is keen to the salt concentration of its system thus making sure to maintain balance between the salt concentration the right amount of water must also be in its area of release for any expected occurences.<span>
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3 years ago
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