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Paraphin [41]
3 years ago
13

As successional changes occur in an ecosystem, new species take advantage of new conditions. where do these new species come fro

m?
Biology
1 answer:
Bumek [7]3 years ago
6 0
The new species come from old ancestors of the animals that were there, over time they slowly evolved, and they adapted to that new environment.
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When applying rigid-body mechanics to the study of human beings, which assumption is made?A. All of the above are assumed.B. The
Marat540 [252]

When applying rigid-body mechanics to the study of human beings, the assumption made is Option B.The body does not deform by bending, stretching, or compressing.

<u>Explanation</u>:  

Rigid body mechanics is a body in which the gap between any two points will be constant in time, despite of external forces. The body cannot be deformed at any circumstances be it under application of any force. The forces acting over the body gets divided into two groups one is external, which shows the action of different bodies on the rigid body under force and internal force that binds the body together making it rigid. Body changes its motion only in case of pull against some external object.

5 0
3 years ago
In an analysis of the nucleotide composition of DNA, which of the following proportions will be found?
katrin [286]

Answer:

With respect to the composition of DNA, in an analysis it can be found that the proportions of nucleotides are A + C = G + T (option a).

Explanation:

The proportion of nucleotides in a DNA molecule can be established according to the sequence of these nucleotides on both complementary strands, since the purinic bases of one strand are complemented by the pyrimidinic bases of another:

  • <em>Adenine is complemented with Thymine A=T</em>
  • <em>Guanine is complemented with Cytosine G=C</em>

From this we can deduce that in a DNA molecule with two chains there will be the same amount of adenine and thymine, as well as the same number of guanine with respect to cytosine, so:

<em>     A + C = G + T</em>

An example of this would be a known DNA molecule (hypothetical), with 5 molecules of Adenine and 7 molecules of Guanine. In this case there are 5 Thymines, complementary with Adenine, and 7 Cytosines like Guanine:

<em>     A + C = G + T</em>

<em>     5 + 7 = 7 + 5</em>

6 0
2 years ago
12) On the diagram below:
ser-zykov [4K]

Explanation:

  • A . Carbohydrate chain
  • B .
  • C.Protien
  • D . cholesterol
  • E . phospholipid
  • f.
  • G . hydrophilic head of phospholipid
  • h . hydrophobic tail of phospholipid
4 0
2 years ago
A velocity-time graph shows how<br> I<br> changes over<br> time.
stich3 [128]

Answer:

What does a linear velocity graph tell us?

The principle is that the slope of the line on a velocity-time graph reveals useful information about the acceleration of the object. If the acceleration is zero, then the slope is zero (i.e., a horizontal line). If the acceleration is positive, then the slope is positive (i.e., an upward sloping line).

What is an acceleration time graph?

A graph that shows acceleration plotted against time for a particle moving in a straight line. ... The acceleration-time graph is the graph y=a(t), where the t-axis is horizontal and the y-axis is vertical with the positive direction upwards.

graph shows changes in velocity of a moving object over time. The slope of a velocity-time graph represents acceleration of the moving object.

Explanation:

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6 0
2 years ago
Speculate on what science might be like without recognizable patterns in nature.
Sophie [7]
If there were no patterns in nature everything would be complicated. Atoms and all the little things would be different meaning our body structures would be different and the plants would be different too.
4 0
3 years ago
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