Correct answer
C. Two
Explanation
Two is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Sickle cell anemia was discovered by_________?
Numerous opportunistic diseases might attack a person suffering from which of the following diseases:
The survival of an animal depends upon its ability to take some from its environment____________?
Of the following which one is not the characteristic of Kingdom Animalia.
For which of the following no preventive vaccine is available?
Conversion of ammonia or ammonium ion into nitrites during nitrogen cycle occurs due_____________?