Answer:
Consciousness is the awareness of INTERNAL and EXTERNAL stimuli; often described as a continuum ranging from full awareness to deep sleep.
Explanation:
Internal stimuli include pain, hunger, thirst while external stimuli include light, sound.
Variation of consciousness is seen in different physical states ranging from full alertness to deep sleep. This is controlled by the biological clock, the circadian rhythm.
(True)-After one week, seedling height was taken as a measure of plant growth.
Answer:
Explanation of a natural phenomenon, supported by many observations and experiments over time, corresponds to a scientific theory.
Explanation:
A scientific theory begins with the observation of a natural phenomenon and the formulation of a hypothesis that explains its existence, which must be proven through observation and experimentation.
The approach of a theory follows the scientific laws and must be established on the basis of rigorous experimentation and measurement, establishing a relationship between what is observed and what can be proven, in such a way that a theoretical principle is elaborated to provide an explanation of the phenomenon.
A theory is subject to the scrutiny of the scientific community and can be refuted, when other data or experiments appear to oppose it. When the argument of a theory cannot be refuted, and is universally accepted, it becomes a scientific law.
Answer:
Pluto
Explanation:
Pluto because some people consider it a planet, but some consider it a dwarf planet because it has not cleared the neighborhood around its orbit.
Answer:
B
Explanation:
Protons of atoms are the atomic particles with a positive charge while electrons bear a negative charge. Protons are found in the nucleus together with neutrons (that have no charge). They are held together by strong nuclear forces that overcome the repulsive forces between the positive charges in the nucleus. The electrons orbit around the nucleus and are kept in orbit by the electromagnetic attraction of the positive nucleus.
