Answer:
Proteins and lipids
Explanation:
These 2 are the main organic compounds used.
Answer:
(4) all scientific explanations are tentative and subject to change and improvement
Explanation:
<em>As new facts or findings emerge about a topic, previous explanations about the topic change or are improved on. That is why findings from researches do not become a theory overnight until they have been tested by several independent researchers.</em>
Even when findings become theories, emergence of overwhelming counterclaims concerning the findings often result in change of the theory. A good example is found in Dalton's atomic theory which claimed that atoms are the smallest indivisible particle of elements. The theory was later disproved by the emergence of the fact that atoms contain proton, neutrons and electrons.
Hence, it is concluded that all scientific explanations are tentative and subject to change and improvement as new facts emerge.
Answer:
La actividad humana produce mucho ruido, y los altos decibelios en un determinó do lugar por encima de sus niveles naturales marcan la contaminación.
Explanation:
Creo que es la respuesta
I believe the correct answer is d.
Answer:
Explanation:
The endocrine system plays an important role in homeostasis because hormones regulate the activity of body cells. The release of hormones into the blood is controlled by a stimulus. For example, the stimulus either causes an increase or a decrease in the amount of hormone secreted. Then, the response to a stimulus changes the internal conditions and may itself become a new stimulus. This self-adjusting mechanism is called feedback regulation.