You make an educated guess in what you already know about the experiment.
Make sure you hypothesis is testable, It is not a question so dont make it sound like one <span />
Answer:
<em>Like every other organism the population size of the humans have increased over time.</em>
Explanation:
With the improvements in science and technology, life becomes better and better for human beings. In the past, when there were no discoveries for curing diseases, the human population declined because of the spread of various diseases and famine conditions.
But as the developments in the scientific world are made, it has been easier to cure diseases and other problems. As a result, the population size of the human goes on increasing.
Smooth muscles- protects the organs
Cardiac muscle- around the heart
And skeletal
2 seems like the best answer
