Answer: The correct answer is- D certain factors are dominant and other factors are recessive.
Mendel was interested in knowing the offspring that is produced from the cross pollination (that is from two different plants) as he wanted to study different traits of pea plant.
For doing so, he first removed the anthers of one plant (to prevent self pollination) and then transferred the pollens of one plant into the stigma of another plant.
When he allowed the cross pollination of purebred pea plant with other plant, he observed that some factors are dominant (such as tall height of pea plant, which masks the expression of recessive factors) and other are recessive (such as dwarf height of pea plant).
Thus, option D) is the right answer.
Answer:
3rd law
Explanation:
First law of Newtons :
Newton's First Law states that, unless an external force acts on it, an object will remain in a straight line in rest or uniform motion.
The second law of Newtons :
The second law states that an object's acceleration depends on two variables-the net force that acts on the object and the object's mass.
The change in the linear momentum of the object is equal to the force.
Third law of Newtons :
This law states that every action has its reaction with the same magnitude but in the opposite direction.
When we push the wall , then the wall does not move because the wall is fixed but we skid opposite to the direction of applied force because wall offers an opposite force on our body.
Therefore the answer is "third law".
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