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Q:

Which of the following is a nitrogen-fixing bacteria?

A) Salmonella B) Rhizobium
C) E.coli D) Pseudomonas
 
Answer & Explanation Answer: B) Rhizobium

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Q:

Which one is not the cause of kidney stone formation?

A) Drinking more water B) Diabetic mellitus
C) Taking nuts rich in oxalate D) Eating lot of stone forming foods
 
Answer & Explanation Answer: A) Drinking more water

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Q:

Which part of the human reproductive system helps the embryo get its nutrition from the mother's blood?

A) Placenta B) Fallopian tube
C) Uterus D) Cervix
 
Answer & Explanation Answer: A) Placenta

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Q:

To which class does Oxyreductases, transferases, hydrolases belong?

A) Hormones B) Enzymes
C) Proteins D) Vitamins
 
Answer & Explanation Answer: B) Enzymes

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Q:

Which one of the following derives nutrition from plants as a parasite?

A) Malaria Parasite B) Lice
C) Bryophyllum D) Cuscuta
 
Answer & Explanation Answer: D) Cuscuta

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Q:

How many bones does a human baby have?

A) 206 B) 234
C) 270 D) 354
 
Answer & Explanation Answer: C) 270

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Q:

Which leukocyte is responsible for antibody production?

A) Monocyte B) T-Cells
C) B Lymphocyte D) Basophil
 
Answer & Explanation Answer: C) B Lymphocyte

Explanation:

Leukocyte, commonly known as a white blood cell (WBC), is a major component in protecting the body against invading microorganisms and body cells with mutated DNA, and they clean up debris. 

B Lymphocyte also called as B-Cells or plasma cells produces the antibodies or immunoglobulins that bind to specific foreign or abnormal components of plasma membranes. This is also referred to as humoral (body fluid) immunity.

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Q:

The egg is carried from the ovary to the womb through

A) the uterus B) the vas deferens
C) the oviduct D) the cervix
 
Answer & Explanation Answer: C) the oviduct

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