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Dima020 [189]
3 years ago
12

What is meant by "gaps" within living things or fossils? 1. missing links

Biology
2 answers:
AlekseyPX3 years ago
4 0
1.), missing links
————————-
Alexandra [31]3 years ago
3 0

Answer:

Option (1)

Explanation:

The missing link refers to those fossils that are believed to be connecting two separate groups of organisms in their stages of evolution. They had the characteristics of both the group of organisms. These are the extinct species, and only the traces of it are found to be embedded in some rocks. So there is no proper evidence that supports their existence in the past.

They are considered to be hypothetical, diminished organisms that occur during the evolutionary stages of a group of organism. They are also known as the 'gaps' within living things or fossils.

Thus, the correct answer is option (1).

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Bill has a perfect cube of an unknown substance. The density of the substance is 3.0 g/cm. He
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The volume of the cube of unknown substance is 27\ cm^3. The length of one side of the cube is 9 cm

<u>Explanation:</u>

As per the formula of mass and density, Mass / Density equals to volume. Therefore as the mass of the cube was given to be 81 g and the density of the cube is known to be 3.0 g/\mathrm{cm}^{3},, to help Bill find out the volume. It is the ratio of mass and density and can be calculated as

      \text {volume}=\frac{\text {mass}}{\text {density}}=\frac{81 g}{3 g / \mathrm{cm}^{3}}=27 \mathrm{cm}^{3}

As it is a cube, the volume is product of length, breadth, and height. Here, all sides are same as it is the cube.

        volume= length \times breadth \times height

       27=3 l

      length of cube's one side, l=\frac{27}{3}=9 \mathrm{cm}

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