1.
The plant dye Henna imparts orangered colour to skin and hairs due to its reaction with which of the following?
Answer: Option 'C'
Protein and amino acids
2.
Name the blood cells in which nucleus is absent
Answer: Option 'B'
Blood Platelets
3.
Animal without red blood cells
Answer: Option 'A'
Earthworm
4.
The phenomenon of summer sleep by animals is called
Answer: Option 'B'
Aestivation is summer sleep. Many organisms like the snails do not find it comfortable in summer. They withdraw and lead a life with reduced BMR (basic Metabolic Rate) in a state of dormancy.
5.
The human heart is
Answer: Option 'B'
Myogenic heart
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.
6.
Who is known as father of Zoology
Answer: Option 'B'
Aristotle
7.
Spermology is the study of
Answer: Option 'B'
Seed
8.
13 - Chambered heart occurs in
Answer: Option 'B'
Cockroach
9.
The energy released by 1 gram of glucose is
Answer: Option 'B'
4 kcal
10.
The corner of the cells of collenchyma tissue in plant are thickened due to deposition of _____
Answer: Option 'A'
Cellulose and pectin