Biology Questions

Q:

Which one reveals, more appropriately, functioning of the heart?

A) Electrocardiogram B) Echocardiogram
C) Stethoscope D) Lipid profile
 
Answer & Explanation Answer: B) Echocardiogram

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Q:

Which subatomic particle determines the identity of an element?

A) Electrons B) Protons
C) Neutrons D) All the above
 
Answer & Explanation Answer: B) Protons

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Q:

RBCs are formed in the ____________ in the adults.

A) blue bone marrow B) red bone marrow
C) white bone marrow D) black bone marrow
 
Answer & Explanation Answer: B) red bone marrow

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Q:

Which of the following is a nitrogen-fixing bacteria?

A) Salmonella B) Rhizobium
C) E.coli D) Pseudomonas
 
Answer & Explanation Answer: B) Rhizobium

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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:

Which of the following is at the second trophic level of a food chain?

A) Grass B) Rats
C) Snake D) Eagle
 
Answer & Explanation Answer: B) Rats

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Q:

Which of the following is present in the centre of a flower?

A) Carpel B) Sepals
C) Petals D) Stamen
 
Answer & Explanation Answer: A) Carpel

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Q:

The Lachman test is used to evaluate stability of the

A) Anterior cruciate ligament B) Iliotibial band
C) Pivot shift  D) None
 
Answer & Explanation Answer: A) Anterior cruciate ligament

Explanation:

The Lachman test is used to evaluate stability of the Anterior cruciate ligament.

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