The correct answer would be D) An observation that has a number associated with it.
Answer:
3.Fitness is related to whether an organism's adaptations result in more offspring
Hadean is the first eon of precambrian, and took place around 4.6 and 4.0 billion years ago.
The bladder, the kidneys, the skin, the lungs, the liver, and the urethra.
<span>An element is a substance that cannot be broken into other substances further.An element is composed of one type of atoms all over. Like a molecule can be divided into atoms further. For example, Water is a molecule which is made up of Oxygen (O), Hydrogen (H). Here, Oxygen and Hydrogen are elements and cannot be further broken down into other substances.</span><span />