1.An eardrum is absent in ____:
[A] Snakes
[B] Toads
[C] Turtles
[D] Tuatara
Correct Answer: A [Snakes]
2.If a healthy freshwater fish is placed in salt water, what will be the expected consequence?
[A] The fish becomes dehydrated and dies
[B] The fish becomes bloated and dies
[C] The fish suffers from fungal or bacterial disease and dies
[D] There is no observable effect on the fish provided there is sufficient food
Correct Answer: A [The fish becomes dehydrated and dies]
3.Entomology is the study of ____:
[A] Insects
[B] Birds
[C] Fossils
[D] Fungi
Correct Answer: A [Insects]
4.The optimum dissolved oxygen level (in mg/litre) required for survival of aquatic organisms is ____:
[A] 2 – 4
[B] 4 – 6
[C] 8 – 10
[D] 12 – 16
Correct Answer: B [4 – 6]
5.The narrowest and most numerous tubes of lungs are termed as ____:
[A] Bronchus
[B] Hilum
[C] Bronchioles
[D] Alveoli
Correct Answer: C [Bronchioles]
6.Lungs of a plant are ____:
[A] Roots
[B] Flowers
[C] Stems
[D] Leaves
Correct Answer: D [Leaves]
7.Which of the following gets activated upon illumination and generates electrical signal?
[A] Optic nerve
[B] Ciliary muscles
[C] Vitreous humour
[D] Light sensitive cell
Correct Answer: D [Light sensitive cell]
8.The normal cholesterol level in human blood is _____:
[A] 80-120 mg%
[B] 120-140 mg%
[C] 140-180 mg%
[D] 180-200 mg%
Correct Answer: D [180-200 mg%]
9.Sex of the baby depends on whose chromosomes?
[A] Mother
[B] Father
[C] Grandmother
[D] Both mother and father
Correct Answer: B [Father]
10.The animal that do not develop hypertension in spite of heavy intake of salt is _____:
[A] Sheep
[B] Camel
[C] Buffalo
[D] Tiger
Correct Answer: B [Camel]