The contraction of a muscle exerts a pull on a bone because
A) Muscles are attached to bones by ligaments.
B) Muscles are directly attached to bones.
C) Muscles are attached to bones by tendons.
D) A, B, and C
E) none of the above
C) Muscles are attached to bones by tendons.
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The sacrum does not protect organs in the ________ system
A) reproductive B) digestive C) urinary D) nervous E) respiratory
Using the figure below, identify the labeled part.
1) Label A: ______________________________
2) Label B: ______________________________
3) Label C: ______________________________
4) Label D: ______________________________
5) Label E: ______________________________
6) Label F: ______________________________
7) Label G: ______________________________
8) Label H: ______________________________
9) Label I: ______________________________
10) Label J: ______________________________
11) Label K: ______________________________
12) Label L: ______________________________
13) Label M: ______________________________
14) Label N: ______________________________
15) Label O: ______________________________
16) Label P: ______________________________
17) Label Q: ______________________________
18) Label R: ______________________________
19) Label S: ______________________________
20) Label T: ______________________________
21) Label U: ______________________________
Which of the following is(are) obstructive conditions?
A. emphysema and an acute asthma attack B. an acute asthma attack C. emphysema D. emphysema, an acute asthma attack and exercise E. exercise
In the evolution of mammals, which glands were modified to produce milk?
A. Ceruminous glands B. Merocrine glands C. Apocrine glands D. Sebaceous glands E. Sudoriferous glands