Answer:
Choose B) B) If conclusion is valid, similar investigations by
other scientists should result in the same
conclusion.
Explanation:
The proton is a subatomic particle found in the center of the atom.
In the physical sciences, subatomic particles are particles much smaller than atoms. There are two types of subatomic particles: elementary particles, which according to current theories are not made of other particles; and composite particles. Particle physics and nuclear physics study these particles and how they interact.
Answer: The food chain
Explanation: It is important to have a large number of producers and herbivores in an ecosystem because of the food chain. Without producers the herbivores would have no food. and without the herbivors the carnivores would have no food.
The two semilunar valves, the pulmonary and aortic valves, are closed, preventing backflow of blood into the right and left ventricles from the pulmonary trunk on the right and the aorta on the left.
Science - proven/ subject to change through experiments, peer reviewed
Pseudoscience- no experimental confirmation of claims... no adherence to scientific method= no validity
