MCQ,s
1. The theory of uniformitarians was proposed by:
(A): Lamark.
(B):Hutton and Lyell
(C):George Cuvier.
(D):Darwin.
2. In the human body all the given organs are vestigial except:
(A): Appendix.
(B): Leg muscles.
(C):Coccyx.
(D): Nictitating membrane.
3. Change in gene frequencies in small population by chance is called:
(A):Gene pool.
(B):Genetic drift
(C): Gene flow.
(D): None of them.
4. Parathyroid hormone acts to ensure that:
(A): The concentration of water in blood is sufficient.
(B): K level in blood do not escalate.
(C): Sodium levels in urine are constant.
(D): Calcium levels in the blood never drop too low.
5.------regulates the kidney retention of water.
(A): Prolactin
(B): Oxytocin.
(C): Thyroid Stimulating hormone.
(D): Vasopressin.
6.Deficiency of vasopressin by pituitary gland lead to:
(A):Diabetes mellitus.
(B):Diabetes Insipidus.
(C): Goitre.
(D):Rickets.
7. In spiders the organs that contain the silk gland are called:
(A):Spinnerets.
(B):Carapaces.
(C):Madreporite.
(D):Tube feet.
8. Which of the following play role in biorhythm.
(A): LH.
(B):ADH.
(C):MSH.
(D):Melatonin.
9. Increase secretion of antidiuretic hormone is due to:
(A):Decrease water supply.
(B):Kidney disorder.
(C):Increase water supply.
(D):None of them.
10. Insulin is produced by:
(A):Alpha cell.
(B):Beta cell.
(C):Gemma cell.
(D):Delta cell.
ANSWER-KEY:
1.B
2.B
3.B
4.D
5.D
6.B
7.A
8.D
9.A
10.B
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