Biology Questions

Q:

Which one of the following tissues is responsible for increase of girth in the stem of a plant?

A) Tracheid B) Pericycle
C) Intercalary meristem D) Lateral meristem
 
Answer & Explanation Answer: D) Lateral meristem

Explanation:

In vascular plants, the lateral meristem is one of two meristems in which growth occurs in order to increase stem girth. A meristem is the region of plant tissue found on the tips of roots and shoots. It is where cell division occurs to produce new growth.

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Q:

In Animal Kingdom classification, which of the following is not a Phylum?

A) Mollusca B) Chordata
C) Coelomates D) Anneldia
 
Answer & Explanation Answer: C) Coelomates

Explanation:
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Q:

Lipids that are solid at room temperature are known as

A) Oils B) Steroids
C) Fats D) Triglyceroids
 
Answer & Explanation Answer: C) Fats

Explanation:

Lipids are molecules that contain hydrocarbons and make up the building blocks of the structure and function of living cells.

 

Examples of lipids include fats, oils, waxes,...

 

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Q:

The plant growth regulators are small, simple molecules of diverse chemical composition. They are

A) carbohydrates, fats and proteins B) indole compounds, adenine derivatives, carotenoids and terpenes
C) fatty acids, glucose and vitamins D) vitamin C, vitamin D and glucose
 
Answer & Explanation Answer: B) indole compounds, adenine derivatives, carotenoids and terpenes

Explanation:

The  plant  growth  regulators  are small,  simple  molecules  of  diversechemical composition. They can be in   form   of   indole   compounds, adenine   derivatives,   carotenoids derivatives,terpenes  or  gases  like ethyleneetc.The   plant   growth regulators  are  bifurcated  into  two groups according to their functions in  a  living  plant  body.First  group of   plant   growth   regulators   are found   in   growth   activities,   for instance,  cell  division,  flowering, fruiting  and  seed  formation.The second   group   of   Plant   growth regulators   are   involved   in   plant responses  to  wounds  and  stresses of biotic and abiotic origin.

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Q:

Which of the following is responsible for Vermicomposting?

A) Fungus B) Worms
C) Bacteria D) Birds
 
Answer & Explanation Answer: B) Worms

Explanation:
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Q:

Which cells in pancreas produce Insulin ?

A) Thymus B) Estrogen
C) Corpus epididymis D) Islets of Langerhans
 
Answer & Explanation Answer: D) Islets of Langerhans

Explanation:
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Q:

For the aquatic organisms, the source of food is

A) Phytoplankton B) Sea Weed
C) Aqua plankton D) Zooplankton
 
Answer & Explanation Answer: A) Phytoplankton

Explanation:
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Q:

How many facial bones are there?

A) 34 B) 24
C) 14 D) 4
 
Answer & Explanation Answer: C) 14

Explanation:
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