Answer:

Explanation:
Momentum is defined as mass in motion and it can be calculated by getting the product of mass and velocity.
P = mv
where:
P = Momentum
m = mass
v = velocity



So the answer is 
Our immune system defends us from familiar or weak germs.
Answer:
Well as a person who has been diagnosed with anxiety... Stress is caused by loss, extreme episodes, and/or physical pain, etc.
Explanation:
Answer:
Insert at least three blank rows above the listed range that can be used as a criteria range. The criteria range must have column labels. Make sure that there is at least one blank row between the criteria values and the listed range.
Explanation:
The change in adolescence all begins as a child in their unique combination of genes<span>, brain development, environment, experiences with family and friends, and community and culture. Social and emotional changes show that they are growing independently and learning how to be an adult. Physical change in different genders are really different because both are going into puberty and so they begin to see alot of differences in their bodies. Adolescence mental starts on what they begin to see and believe, and as everything is developing in their mind many of those things stay, what they have in mind depends on them. Adolescence are still maturing to become adults.
(hope i kinda made sense)</span>