Answer:
Ideally, the experimental and control groups are identical. As much as possible, the two groups should overlap in every characteristic.
Explanation:
At the beginning of your study, you need your two groups to be as statistically similar as is humanly possible. That way, when you control for other variables, you can reasonably attribute any statistically significant differences at the end of the study to your intervention.
Answer:
The most inclusive level of organization is called the Biosphere.
Explanation:
The biological level of organization is organized from the simplest(least inclusive) to the most complex(most inclusive)
The Atom is the simplest unit. Two or more atoms will form a molecule.
The molecules come together to form a cell which is the basic functional unit of life. Cells come together to form tissues then organs and the organ system. Together they make an organism
Populations is formed by a group of the same organisms living in the same area.
Different populations will form a community. The communities together with the environment they live in form an Ecosystem.
Lastly, The Biosphere is the most inclusive and encompasses all ecosystems on Earth
Answer:
A. True
Explanation:
The result indicates that taking calcium has no effect on the development of osteomalacia in the women. This is because, of the over 120 women placed on the calcium supplements, it happens to be minimal number of people ( less than 20 people) that develop the osteomalacia disease of the bone.
I'm thinking true heres why lets say you have a bird and the bird eats worms.. and all the worms in the world are gone the bird will die and what ever animal ate that bird will die and what ever animal ate that bird will die and so on
my guess
