Biology Questions

Q:

Which of the following is a characteristic of all angiosperms?

A) double internal fertilization B) ovules that are not contained within ovaries
C) complete reliance on wind as the pollinating agent D) free-living gametophytes
 
Answer & Explanation Answer: A) double internal fertilization

Explanation:

The flowering plants, also known as angiosperms, Angiospermae or Magnoliophyta, are the most diverse group of land plants. These are also seed producing plants like gymnosperms. In Angiosperms seeds are in flowers.

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Q:

The smallest blood vessels which are one-cell thick, are called ______.

A) vena cava B) arteries
C) veins D) capillaries
 
Answer & Explanation Answer: D) capillaries

Explanation:
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Q:

REM behavior disorder results from

A) sleep B) walking
C) watching D) All of the above
 
Answer & Explanation Answer: A) sleep

Explanation:

REM (Rapid Eye Movement) Sleep Disorder results from the sleep. Too much alcohol consumption too near to the bed time cause this.

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Q:

Biological membranes are composed of

A) Phospholipids B) Proteins
C) Carbohydrate groups D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Biological membranes are composed of phospholipids, Proteins and Carbohydrate groups attached to lipids and proteins.

 

Biological_membranes_are_composed_of1559036778.jpg image

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Q:

What is the full form of DNA?

A) Diribo nucleic acid B) Di nucleic acid
C) Dual nitrogen acid D) Deoxyribonucleic acid
 
Answer & Explanation Answer: D) Deoxyribonucleic acid

Explanation:
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Q:

Dynamic equilibrium receptors are found in the

A) Vestibule B) Maculae
C) Semicircular Canals D) Cupula
 
Answer & Explanation Answer: C) Semicircular Canals

Explanation:

Dynamic equilibrium receptors are found in the Semicircular Canals. It monitors angular or rotational movements of the head when the body ismoving, such as a figure skater’s spinning, but maintaining balance.

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Q:

What nitrogenous bases are found in RNA?

A) Thymine B) Uracil
C) Guanine D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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Q:

DNA stands for _____.

A) Di Nucleic Acid B) Deoxy Nucleic Acid
C) Diribonucleic Acid D) Deoxyribonucleic Acid
 
Answer & Explanation Answer: D) Deoxyribonucleic Acid

Explanation:
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