Biology Questions

Q:

Contraction of heart is also known as

A) Systole B) Aristotle
C) Diastole D) Lub
 
Answer & Explanation Answer: A) Systole

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Q:

In which of the following tissues are the cells living, elongated and irregularly thickened at the corners?

A) Parenchyma B) Sclerenchyma
C) Aerenchyma D) Collenchyma
 
Answer & Explanation Answer: D) Collenchyma

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Q:

Acacia arabica is the scientific name of

A) Neem B) Teak
C) Babhul D) Pomegranate
 
Answer & Explanation Answer: C) Babhul

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Q:

Which factor affects the heart rate in mammals?

A) Need for oxygen B) RBC count in blood
C) Blood type D) All the above
 
Answer & Explanation Answer: A) Need for oxygen

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Q:

Prawns belong to which family?

A) Crustaceans B) Fish
C) Amphibians D) Reptiles
 
Answer & Explanation Answer: A) Crustaceans

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Q:

_____ are a group of chemicals that influence cell division and shoot formation.

A) Cytokinins B) Gibberellins
C) Domins D) Auxins
 
Answer & Explanation Answer: A) Cytokinins

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Q:

Which part of the brain plays an important role in motor control?

A) Cerebellum B) Cerebrum
C) Medulla D) Pons
 
Answer & Explanation Answer: A) Cerebellum

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Q:

Intestinal bacteria synthesizes which of the following in the human body?

A) Vitamin K B) Proteins
C) Fats D) Vitamin D
 
Answer & Explanation Answer: A) Vitamin K

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