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aleksley [76]
2 years ago
6

1. Which of the following are common characteristics of birds and fishes?

Biology
2 answers:
Oduvanchick [21]2 years ago
8 0

Answer:

Common characteristics of birds and fishes are:

They can have Respiration.

They can move from one place to another.

Lady_Fox [76]2 years ago
6 0
Both belong to vertebrates. Both have streamlined body. Both lays calcareous eggs. Both have scales
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Using the idea of concentration gradient explain why the purple colour of potassium permaganate gradually spreads throughout the
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The purple color of potassium permanganate gradually spreads throughout the water in the jar by the process of diffusion.

  • Diffusion is the process of movement of a substance from the region of higher concentration to the regions of lower concentration. Diffusion occurs in liquids as well as gases.
  • Potassium permanganate is a purple color compound, when it is added in a jar of water it spreads throughout the water by the virtue of diffusion.
  • The concentration of potassium permanganate is higher at one point and the other regions in the jar have its nil or low concentrations initially, this leads to the set up of a concentration gradient.
  • As time passes diffusion occurs and the particles of potassium permanganate keep on migrating to the regions of low concentration until the concentration is uniform throughout the jar. Ultimately, it spread throughout the jar making the water purple.

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3 0
2 years ago
How did Mendel’s results from dihybrid crosses help him develop the law of independent assortment?
mart [117]

Explanation:

The out come that mendel's observed from dihybrid crosses confirmed that each trait could be described by a pair of factors that segregated to form progeny (his first law) and further suggested that factors for multiple traits segregated independently, thus forming the basis for mendel's second law of inheritance

Hope this will help you analyse your answer

4 0
3 years ago
Most wind erosion is caused by?
Dennis_Churaev [7]

Answer:

from wind power/light winds.

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3 0
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