Answer:
Control group
Explanation
In every experiment, we must need a standard or control to compere the other variations or treatments we assay. For example, we want to know the effect of a new fertilizer in plants. We have one group of plants without fertilizer and one group with fertilizer. after a month we see if the fertilizer is effective in promoting growth, we compare the size of the plants with and without if it is effective the plant will be taller than control group.
Answer:
they both have structures in common and have ribosomes
Explanation:
It's often impossible to repeat trials on the same subjects. 2-Subjects may report an inaccurate medical history. 3-It can be difficult to control all possible variables. 4-It's impossible to come up with testable scientific questions for human subjects.
<span>Obesity
is a more serious degree of overweight and it is estimated that 67% of the
adult population is obese. However it is also estimated that 33 percentage of
adult men are obese and 35 percentage of adult women are obese. Furthermore,
middle aged in 40s to 59 years old American adult has the highest prevalence of
obesity in which 40% the women is higher than in men. </span>
