True it does
Blood cells bring oxygen to cells and take carbon dioxide away.
Answer:
According to the research methodology, a set of observation leads to the formulation of a hypothesis. However, a hypothesis can be formulated through literature research or by looking into real world's problems. The hypothesis is then tested using a strict research criteria, and if proven, it becomes a theory.
In this case, a researcher made a <u>hypothesis that people who exercise will do better on a specific test as compared to the people who don't exercise</u>. This hypothesis is based on his literature review and should be tested. There are no conditions given for the test, nevertheless, it doesn't provide enough information to be called as a theory or scientific law.
Answer:
yes
Explanation:
there are several strands of evidence supporting the effectiveness of masks
Answer:
D, Professionalism
Explanation:
Based on the following information, we can remove dependability and sincerity. Self acceptance isn't an answer either since it means accepting yourself, Lee is trying to present himself to everyone and appear with a good professional character.
1. rock climbing
2. dog sledding
3. hiking
