Question

question 3 (2.5 points) saved
the outer layer of the eye is the
a) sclera.
b) retina.
c) cornea.
d) choroid.
question 4 (2.5 points) saved
a person with type o negative blood is considered a(n)
a) universal donor
b) universal recipient

Explanation:

For Question 3: The sclera is the tough, white outer layer of the eye. The retina (b) is the light - sensitive inner layer. The cornea (c) is the clear front part of the eye (a part of the outer layer but not the entire outer layer). The choroid (d) is a vascular middle layer.
For Question 4: A person with type O negative blood has no A, B, or Rh antigens on their red blood cells. So, their blood can be donated to people with various blood types (A, B, AB, O, positive or negative), making them a Universal Donor. A Universal Recipient is someone with AB positive blood.

Answer:

Question 3: A. sclera
Question 4: A. Universal Donor