Biology Questions

Q:

What process accounts for species diversity?

A) Predation B) Mitosis
C) Symbiosis D) Meiosis
 
Answer & Explanation Answer: D) Meiosis

Explanation:

The process accounts for species diversity is Meiosis. Meiosis is termed as a specialized cell division which reduces chromosomes number by half and then creates for haploid cells.

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Q:

The organs of the urinary system are

A) Kidney B) Urinary bladder
C) Ureter D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

the_organs_of_the_urinary_system_are1537338921.png image

 

The urinary system purpose in the human body is to eleminate the waste from the body. The urinary system is also called as Rena system. It consists of kidney, ureter, urinary bladder and urethra.

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Q:

Which of the following leads to the production of urea?

A) Synthesis of protein from amino acids B) Oxidation of glucose
C) Degradation of amino acids D) Incomplete oxidation of fatty acids
 
Answer & Explanation Answer: C) Degradation of amino acids

Explanation:

Urea is a by product of amino acid catabolism, Which occurs in the liver. The nitrogen in the  amino acid becomes converted to ammonia and this is further converted by the liver into urea

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Q:

Study of Life in outer space is known as

A) Endobiology B) Neobiology
C) Exobiology D) Intrabiology
 
Answer & Explanation Answer: C) Exobiology

Explanation:

Study of Life in outer space or search of life external to Earth is known as Exobiology.

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Q:

What is the correct order for Respiration?

A) Election transport chain – Krebs’ cycle – glycolysis B) Glycolysis – Krebs’ cycle – electron transport chain
C) Glycolysis – electron transport chain – Krebs’ cycle D) The Krebs’ cycle - electron transport chain - glycolysis
 
Answer & Explanation Answer: B) Glycolysis – Krebs’ cycle – electron transport chain

Explanation:

Cellular respiration can be broken down into three main steps:

1. Glycolysis,

2. The Kreb's cycle (The citric acid cycle), and

3. Electron Transport Chain.

 

https://hyperphysics.phy-astr.gsu.edu/hbase/biology/celres.html

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Q:

Dysfunctional behaviors are maladaptive which means that they

A) are medicated B) interfere with everyday life
C) cause of stress D) all of the above
 
Answer & Explanation Answer: B) interfere with everyday life

Explanation:

Dysfunctional behaviors are maladaptive which means that they interfere with everyday life.

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Q:

Which of these is an example of a haploid cells?

A) Sperms B) Neurons
C) Red blood cells D) All of the above
 
Answer & Explanation Answer: A) Sperms

Explanation:

In the above options, sperms are the haploid cells. In humans, haploid cells are those have only half the number of usual number of chromosomes. Sperm, gamates and egg cells are the haploid cells examples.

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Q:

Which phrase best describes rough ER?

A) studded with ribosomes B) fewer solutes than the cell
C) stored in the central vacuole D) protected by vesicles
 
Answer & Explanation Answer: A) studded with ribosomes

Explanation:
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