Answer: d
The respiratory and circulatory systems bring oxygen and nutrients to the cells. The respiratory and circulatory systems work together to maintain homeostasis. The respiratory system moves gases into and out of the blood. The lungs contain the bronchi, bronchioles, and alveoli.
Explanation:
Answer:
Falsifiability
Explanation:
Falsifiability:
Falsifiability is an important principle in science philosophy. A theory or hypothesis only be considered scientific if it has the possibility of rejection and acceptance. It means, before acceptance of hypothesis it must be disprovable.
Example: "All swans are white" is an example of falsifiability because black swans are also there.
Answer:the use of masks are being revisited even though vaccines are now available to all because some people may not like the idea of injecting the virus into their body with all of the side effects and still may be able to get the virus even if they did get the vaccine.
Explanation:The bottom line is that the main reason why people do not want the vaccine and would just keep using masks over and over again,is because of the side effects.
