Explanation:
1)the system of measurement which are used by local people in a certain part of world is called local system of measurement.
-The units of measurement which are same throughout the world and accepted by most of people is called standard units of measurement.
2) The local system of measurement are not accurate and reliable.
-The standard units of measurement are accurate and reliable.
3) examples of local system-pathi,muri,pau,etc.
examples of standard system-metre,kilogram, second,etc
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Complete question:
Which of the following pairs represent homologous structures?
- Wings of grasshopper and forelimbs of flying squirrel
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Tentacles of Hydra and arms of starfish
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Forelimbs of a bat and forelegs of a horse
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Wings of a bird and wings of a moth
Answer:
3. Forelimbs of a bat and forelegs of a horse
Explanation:
Homologous characters are structures with the same basic elements. Their position in the body and the relations with adjacent structures are also the same in different organisms, and they even share the same embryological development.
These structures might show variations between the organisms exhibiting them. Variations might be related to their function and to the environment in which the organism lives. The function they accomplish is not necessarily the same in all the organisms involved.
These homologous characters are present in organisms related that share a common ancestor.
For example, whales, humans, and cats all have the same bones in the same order, but they matured differently in later embryological development.
Among the options, the only possible pair that represents homologous characters is option <em>3. Forelimbs of a bat and forelegs of a horse</em>. Both structures are the anterior extremities of the animals and share the same bones, even though they might differ in the development degree. Forelimbs and forelegs have the same position and relation with other structures in the body, and embryologically, they are the same.
Answer:
Monomers of carbohydrates are monosaccharides (mono- one; saccharide- sugar) which are simple sugars like glucose, fructose and galactose. Polymers of carbohydrates or polysaccharides include starch (most common and abundant polymer of carbohydrate), dextran, cellulose, hemi cellulose and pullulan.
Explanation:
B. A light particle because it is the basic unit of all light. It is a quantum of energy with a visible wavelength
<span>The car is passed by a motorcycle that is moving faster than it which means both the car and the motorcycle is moving in the same direction. Since both object move in the same direction, the relative speed of the motorcycle would be slower. The speed would be:
relative speed= motorcycle speed - car speed
</span>relative speed= 80MPH- 55MPH= 25MPH