Answer:
It would definitely be A
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Answer:
Explanation:
Mechanical advantage is given by the ratio of output force by input force.
= Output force = 
= Input force = 
So,
The mechanical advantage of the pulley's is .
Gradualism and punctuated equilibrium are two ways in which evolution of a species can occur. Gradualism is selection and variation that happens more gradually; over a short period of time it is hard to notice
Therapeutic cloning<span> uses the replication of human embryos to harvest </span>stem cells<span> for medical uses. Majority of the clones are made through a process called "somatic </span>cell<span> nuclear transfer." Basically, a scientist uses a tiny needle to pull DNA material from the nucleus of a donor </span>cell<span> and transfer it into a hollow egg</span>
