Error in wording. Question reads: When a lamb is born, the rear legs normally are presented first and are easily to grasp if the lamb needs assistance to be born.

Should read: When a lamb is born, the rear legs normally are presented first and are easy to grasp if the lamb needs assistance to be born.

True is incorrectly identified as the correct response. The explanation reads: When a lamb is born, the rear legs normally are presented first and are easily to grasp if the lamb needs assistance to be born.

False should be identified as the correct response. The explanation should read: The lamb normally presents forelegs first, with its head lying on the forelegs.

The question reads: The ventral marking gland in gerbils is located on the
a. base of the tail
b. bottom of the feet
c. chin
d. abdomen
a. base of the tail is given as the correct response.

The correct response is d. abdomen.

Pruritis is misspelled

Pruritus is correct spelling.

Error in the following sentence: Their eyes open downward rather than front or side.

Should read: Their nostrils open downward rather than front or side.

Word is missing from this sentence: This animal is often referred to as a , and is used to study disease associated with defective genes.

Should read: This animal is often referred to as a knockout, and is used to study disease associated with defective genes.

The life span of the guinea pig was omitted.

Computer Version:
Which bone is part of the axial skeleton?
A) Vertebra
B) Phalanges
C) Ribs
D) Mandible
Correct answer given is A) Vertebra. While this is correct, ribs and mandible are also part of the axial skeleton. Question will be changed to:
Which bone is not part of the axial skeleton?
A) Phalanges
B) Vertebra
C) Ribs
D) Mandible
Correct answer is A) Phalanges