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Q:

Which of the following hormone is not secreted by pituitary gland?

A) Thyroid-stimulating hormone (TSH) B) Prolactin
C) Vasopressin D) Somatostatin
 
Answer & Explanation Answer: D) Somatostatin

Explanation:
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Q:

Which of the following is NOT a characteristic of dicotyledons plants?

A) These plants have a tap root B) These plants have reticulate venation
C) These plants have fibrous roots D) These plants have 2 cotyledons
 
Answer & Explanation Answer: C) These plants have fibrous roots

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Q:

Narcolepsy is a disorder in which a person

A) has excessive daytime sleepiness B) has excess heart rate
C) has excess body pains D) All the above
 
Answer & Explanation Answer: A) has excessive daytime sleepiness

Explanation:

 

Narcolepsy is a disorder in which a person has excessive daytime sleepiness, sleep/wake disorder.

 

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Q:

Which part of the brain regulates breathing?

A) Cerebellum B) Medulla
C) Fore-brain D) Mid-brain
 
Answer & Explanation Answer: B) Medulla

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Q:

Which part of the human brain is the centre for intelligence, memory and emotions?

A) Hypothalamus B) Cerebrum
C) Corpus Callosum D) Mid Brain
 
Answer & Explanation Answer: B) Cerebrum

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Q:

Dwarfness can be controlled by treating plants with

A) Gibberellic acid B) Cytokinin
C) Ethylene D) Auxin
 
Answer & Explanation Answer: A) Gibberellic acid

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Q:

What temperature does bacteria grow quickest at

A) 40°F and 140°F B) 14°C and 90°C
C) 80°F and 140°F D) None
 
Answer & Explanation Answer: A) 40°F and 140°F

Explanation:

Most bacteria will grow rapidly between 4°C and 60°C (40°F and 140°F).

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Q:

In sexual reproduction a parent contributes

A) Half of their genes B) Three-fourth of their genes
C) All the genes D) One-fourth of their genes
 
Answer & Explanation Answer: A) Half of their genes

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