Answer:
Mechanical
:
Support. Bones provide a framework for the attachment of muscles and other tissues.
Movement. Bones enable body movements by acting as levers and points of attachment for muscles.
Protective
:
Bones such as the skull and rib cage protect vital organs from injury. Bones also protect the marrow.
Metabolic
:
Mineral storage. Bones serve as a reservoir for calcium and phosphorus, essential minerals for various cellular activities throughout the body.
Blood cell production. The production of blood cells, or hematopoiesis, occurs in the red marrow found within the cavities of certain bones.
Energy storage. Lipids (fats) stored in adipose cells of the yellow marrow serve as an energy reservoir.
Explanation:
Jie recently got out of a bad relationship. While she is excited to be single again, she is not sure how she will move forward on her own. Jie's uncertainty in making a subjective evaluation about her current situation means she is struggling with emotion.
Answer:
1
Explanation:
sin
15
°
cos
75
°
+
cos
15
°
sin
75
°
=
sin
(
15
°
+
75
°
)
=
sin
(
90
)
=
1
