Biology Questions

Q:

The human heart is 

A) Neurogenic heart B) Myogenic heart
C) Pulsating heart D) Ampullary heart
 
Answer & Explanation Answer: B) Myogenic heart

Explanation:

Hearts are of several types. In some invertebrates the heart is simulated by the nervous system to do its work. Such hearts are called Neurogenic hearts. The Human heart is myogenic. i.e, it recieves the stimuli for contraction from the muscular node called sinu-auricular node or pace maker.

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Filed Under: Biology

835 40954
Q:

Spermology is the study of

A) Seed B) Leaf
C) Fruit D) Pollen grain
 
Answer & Explanation Answer: A) Seed

Explanation:
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Filed Under: Biology

470 36132
Q:

Who is known as father of Zoology

A) Darwin B) Aristotle
C) Lamark D) Theophrastus
 
Answer & Explanation Answer: B) Aristotle

Explanation:
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Filed Under: Biology

646 34780
Q:

Animal without red blood cells

A) Frog B) Earthworm
C) Snake D) Peacock
 
Answer & Explanation Answer: B) Earthworm

Explanation:
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Filed Under: Biology

439 33977
Q:

Some species of which of the below kinds of organisms are employed as biopesticides?

1.Bacteria          2. Fungi       3. Flowering plants

A) 1 only B) 2 and 3 only
C) 1 and 3 only D) 1, 2 and 3
 
Answer & Explanation Answer: A) 1 only

Explanation:
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Filed Under: Biology

106 31976
Q:

The energy released by 1 gram of glucose is

A) 6 kcal B) 4 kcal
C) 5 kcal D) 3kcal
 
Answer & Explanation Answer: B) 4 kcal

Explanation:
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Filed Under: Biology

354 30428
Q:

13 - Chambered heart occurs in

A) Leech B) Earthworm
C) Snail D) Cockroach
 
Answer & Explanation Answer: D) Cockroach

Explanation:
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Filed Under: Biology

397 29442
Q:

The corner of the cells of collenchyma tissue in plant are thickened due to deposition of _____

A) Lignin and suberin B) Suberin and cutin
C) Cellulose and pectin D) Chitin and lignin
 
Answer & Explanation Answer: C) Cellulose and pectin

Explanation:
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Filed Under: Biology

320 28753