Cockroaches prefer the following condition
A) Light and dry
B) Dark and dry
C) Light and damp
D) Dark and damp
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___________ operators are used to verifying more than one condition at a time or to negate the condition.
1. Logical 2. Increment
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__________ operators are used to verifying more than one condition at a time or to negate the condition.
Correct option is (C) Logical
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Why are cockroaches said to be omnipresent?
Cockroaches are said to be omnipresent as they are present everywhere, all over the world. They are usually seen in damp and moist places, crevices.
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Cockroaches are nocturnal and cursorial. Give reason.
1. Cockroaches are active at night hence, they are termed as nocturnal. 2. They are cursorial insects as they show terrestrial adaptations for running.
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Why are cockroaches considered as pests?
Cockroaches are considered pests due to following reasons: 1. Cockroaches damage household materials like clothes, shoes, paper, etc. 2. Cockroaches eat and destroy the foodstuff. They contaminate food, which gives a typical...
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Cockroaches are considered as a part of food chain. Justify.
Many amphibians, birds, lizards and rodents prey upon cockroaches and this makes them a part of food chain. They are also eaten by certain groups of people in South America,...
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Lata was surprised to see cockroaches used as specimen in her college laboratory.
Cockroach are used in laboratories as experimental animal for biological research as they can be obtained easily without causing damage to ecological balance. Cockroaches are commonly used as experimental animal in...
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“A quadrilateral can be a rectangle” if the following condition is satisfied.
A) When diagonals are equal
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We prefer to sip hot tea with a saucer than a cup, because, saucer provides ………….. than a cup.
C) more surface area
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(a) Organic farmers prefer biological control of diseases and pests to the use of chemicals for the purpose justify (b) Give example of a bacterium a
Correct Answer - (a) & (b)
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