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liberstina [14]
3 years ago
7

Why are variations beneficial in natural selection

Biology
1 answer:
Allushta [10]3 years ago
7 0

<u>Answer:</u>

  • Variation is the slight difference in the genotype of the individual than the parent’s traits.
  • So, the variation causes the evolution that helps in increasing the frequency of natural selection of creatures.

<u>Explanation:</u>

  • By the variation, the characteristics of individuals changes, some become faster, more intelligent and some become more fool, in this way the nature adopts the intelligent and fast enough creatures to survive and other to disappear in nature.
  • Variation is a key to evolution and helps in the natural selection process.
  • This unique character actually interacts with the environment and helps in the game of natural selection.
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A construction worker uses a hammer to drive a sharp nail into a concrete wall. What two simple machines is the construction worker using when he does this task-(D) a wedge and a lever

Explanation:

Simple machines are the tools an individual uses in his day to day life in order to make its work simpler.

For Example: Axles and wheel  make it simple to carry a heavy object in a shopping cart.

<u>A hammer is a type of  lever,</u>and is also a type of simple machines.A hammer can be defined as a heavy rigid bar moves around a fixed point ,that point is called fulcrum .

Wedges is also a form of  simple machine and the  inclined plane forms its  foundation. A wedge can be referred to as the sharp edge of an inclined plane.They are used to level out a structure of an object

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