Which of the following describes the blind spot?
A. There are rod cells but no cone cells.
B. There are cone cells but no rod cells.
C. It is where bipolar cells block light from reaching the rods and cones.
D. It is where the iris casts a shadow on part of the retina.
E. It is where the optic nerve leaves the eye.
E. It is where the optic nerve leaves the eye.
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The enamel of the mammalian tooth is composed of crystals of
A) Calcium carbonate. B) Calcium fluoride. C) Calcium phosphate. D) Calcium chloride.
Answer the following questions true (T) or false (F)
1. The female's pelvis is structured for pregnancy and childbirth and, as a result, is generally more narrow and deeper than a male pelvis. 2. The phalanges of the hand and the phalanges of the feet both consist of 15 bones.
Which of the following is the heel bone?
A) talus B) navicular C) calcaneus D) cuboid E) patella
________ innervation increases the rate and the force of heart contraction.
Fill in the blank(s) with the appropriate word(s).