The day on earth is longer because it rotates slower than the moon. The moon also rotates earth, so due to the gravity, it rotates around the earth fast. And the rotation of the moon itself rotates faster then earth
Q1 is A. In addition, Producers make their own food well meanwhile consumers are not able too.
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I think it's A: Sodium is needed to generate an action potential
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The mentioned characteristics of variability are witnessed because of the phenomenon known as X chromosome inactivation in heterozygous females. As females possess two X chromosomes, they actually should not possess any color blindness.
The phenomenon of X-chromosome inactivation takes place in a random manner at the time of embryo development. During this only one X chromosome is inactivated. If the chromosome comprising the defective gene is inactivated, the individual will possess normal vision.
If the chromosome comprising the usual gene gets inactivated than the individual will be color blind. In the given case of female, X inactivation took place in one eye. The inactivation of normal alleles has taken place and thus she possesses normal vision with one eye and is color blind in the other eye.
