Question

question 3 (2.5 points)
the outer layer of the eye is the
a) sclera.
b) retina.
c) cornea.
d) choroid.
question 4 (2.5 points)
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 that provides structural support and protection. The retina is the inner layer that contains photoreceptors for vision. The cornea is the clear front - part of the eye (a part of the outer layer but not the entire outer layer). The choroid is a middle - layer vascular tissue.
For Question 4:
Type O negative blood has no A, B, or Rh antigens. So, it can be donated to people with almost all blood types (A, B, AB, O, positive or negative), making the person a Universal Donor. A Universal Recipient is a person with AB positive blood who can receive blood from all types.

Answer:

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