Answer:
proteins
Explanation:
They have many functions:
-internal and external support
-helps repairing cells
-has a role in transporting materials ex:hemoglobin
Answer:
Inspiration (breathing in)
The diaphragm contracts and moves downwards. The intercostal muscles contract and move the ribs upwards and outwards. This increases the size of the chest and decreases the air pressure inside it which sucks air into the lungs. During normal breathing, the major inspiratory muscles produce rib cage expansion and a downward movement of the diaphragm. These movements cause the pressure around and in the lung to become negative (relative to atmospheric pressure).
Explanation:
ANSWER:
if you want to be succesful in life always be positive and be the good person.
study hard and work hard to have an intelligent mind and an high IQ.
talk less ans listen more.
stop watching and read more.
help others and be nice to others
look for that one thing that ur sooo good at and use that
make aloooot of friends (not really nessecary but the more friends you have the better as they can become really helpful with life)
try to set your goals and achieve them and work hard for it cuz its not gonna knock on ur door and come to you
learn how to say no to specific things ( things that lead to danger, death, trouble...etc)
be organized in your life
think b4 u speak
have a good self esteem and self confidence
eat healthy
know how to use your grammer
thats all i got for u XD
~batmans wife dun dun dun...aka ~serenitybella