Answer:
D.
Explanation:
The immune system lowers the chances of bacteria, viruses, and diseases entering your body
Answer:
True
Explanation:
<em>Conclusions made from scientific research or understanding can always be challenged by anyone with new ways of observing and with different interpretations. This is the essence of the repeatability or reproducibility of scientific experiments.</em>
Scientific research must be reproducible and if the earlier conclusions or understanding is found to be somehow inadequate with overwhelming evidence, they are modified or even changed completely in order to accommodate new facts.
Hence, the emergence of new ways of observing different interpretations can lead to new/different conclusions from the same research. If the new conclusions gain enough evidence, it becomes the new theory.
Answer:
If water gets into a crack in a rock and then freezes, it expands and pushes the crack further apart.
Explanation:
Answer: C. Control Question
Below are the <span>two ways in which analog and digital signals are boosted:
1. </span><span>amplifier
- Simple signs go through a speaker, an electronic gadget that expands the voltage, or quality, of the signs.
2. </span>repeater
- Review that a repeater is a gadget that recovers an advanced flag in its unique frame, without the clamor it may have beforehand gathered
