Answer:B
Explanation:
The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
The net force<span> is the vector </span>sum of all the forces that act upon an object<span>. That is to say, the net </span>force is the sum of all the forces<span>, taking into account the fact that a </span>force<span> is a vector and two </span>forces<span> of equal magnitude and opposite direction will cancel each other out</span>
Answer is (C) It lacks quality experiments.
Phrenology is the study of the brain by looking at the size and the shape of cranium i.e., the skull. The study relies on empirical evidences that someone intelligent will have a bigger brain or will have a larger skull than a average person. These evidences however have no biological proof as they were not examined by conducting experiments. The study also rejected unsupported claims that a person with a smaller brain or skull size can be intelligent. Hence such a study or phrenology is considered a pseudoscience.
