Biology Questions

Q:

Which of the following increase the risk of developing osteoporosis?

A) excessive alcohol B) female gender
C) low estrogen levels D) all the above
 
Answer & Explanation Answer: D) all the above

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Q:

Which of the following part of plant cell, is selectively permeable?

A) Cell wall B) Cell membrane
C) Cytoplasm D) Nucleus
 
Answer & Explanation Answer: B) Cell membrane

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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:

Which of the following has open vascular system?

A) Cockroach B) Human
C) Rat D) Birds
 
Answer & Explanation Answer: A) Cockroach

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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:

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:

Prawns belong to which family?

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

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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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