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Q:

What produces the striations of a skeletal muscle cell?

Answer

The striations are a result of the A bands of sarcomeres appearing as relatively wide, dark stripes under the microscope, which alternate with narrower, lighter colored stripes formed by the I bands. 


The striations of skeletal muscle are created by the organization of actin and myosin filaments resulting in the banding pattern of myofibrils.

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Q:

The heart is classified as a(n)_____.

A) organ B) system
C) cell D) tissue
 
Answer & Explanation Answer: A) organ

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Q:

The body cavity which is lined by mesoderm is called __________.

A) Coelom B) Chordata
C) Arthropoda D) Platyhelminthes
 
Answer & Explanation Answer: A) Coelom

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Q:

Which drug is used to cure Glaucoma?

A) Fexofenadine B) Ketoconazole
C) Latanoprost D) Ibuprofen
 
Answer & Explanation Answer: C) Latanoprost

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Q:

The chemical component that is invariably found in all viruses is

A) proteins B) lipids
C) DNA D) RNA
 
Answer & Explanation Answer: A) proteins

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Q:

Which of the following serves as a nutritive tissue for the growing embryo?

A) Ovule B) Zygote
C) Ovary D) Endosperm
 
Answer & Explanation Answer: D) Endosperm

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Q:

The vocal cords in men are about _______ long.

A) 10mm B) 20mm
C) 30mm D) 40mm
 
Answer & Explanation Answer: B) 20mm

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Q:

The main protein found in milk is ____________

A) Albumin B) Globulin
C) Globin D) Casein
 
Answer & Explanation Answer: D) Casein

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