Which of the following decreases the rate of urinary excretion of calcium ions by the kidney?

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#Question id: 39114

#Life Sciences

Assertion (A): Protochordates are exclusively marine animals.

Reason (R): They lack a vertebral column and are often referred to as "lower chordates.“

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#Question id: 39115

#Zoology

Match List-I with List-II

List-I	List-II
(a) Fasciola hepatica	(i) Canal system
(b) Obelia	(ii) Flame cells
(c) Sycon	(iii) Metagenesis
(d) Ascaris	(iv) Pseudocoelom

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#Question id: 39115

#Life Sciences

Match List-I with List-II

List-I	List-II
(a) Fasciola hepatica	(i) Canal system
(b) Obelia	(ii) Flame cells
(c) Sycon	(iii) Metagenesis
(d) Ascaris	(iv) Pseudocoelom

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#Question id: 39116

#Zoology

The infective stage of Entamoeba histolytica is:

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#Question id: 39116

#Life Sciences

The infective stage of Entamoeba histolytica is:

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#Question id: 39117

#Zoology

R.B.C. is present in the food vacuole of: