Intensity: the more intense a stimulus is (strength of stimulus) the more likely you are to give attention resources to it.
Size: the bigger a stimulus is the more attention resources it captures.
Movement: moving stimuli capture more attention that ones that remain static.
Answer:
a)The brain is protected by the bones of the skull and by a covering of three thin membranes called meninges.
b) Even before you leave the womb, your brain works throughout your life to control your body's functions and helps you understand and interact with the world around you.
Explanation:
It may be because you have the aspect of collaboration. So your brain is open to more ideas and it makes it easier to have beter ideas.