Which of the following are the layers of the body wall in sponges...? Mcqs

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Which of the following are the layers of the body wall in sponges...?

(A) Pinacoderm and mesoderm
(B) Pinacoderm and choanoderm

(C) Epidermis and choanoderm
(D) Pinacoderm and ectoderm

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Which of the following is solid...?

(A) Water
(B) Stone

(C) Both
(D) None

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In a solution, when water is used as a solvent that solution is called...?

(A) Saturated Solution
(B) Aqueous Solution

(C) Unsaturated Solution
(D) Concentrated Solution

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As you go down into a well, your weight__________...?

(A) Slightly increases
(B) Slightly decreases

(C) Remains the same
(D) None of these

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What happens to a person who receives the wrong type of blood...?

(A) All the arteries constrict
(B) All the arteries dialates

(C) The RBCs agglutinate
(D) The spleen and lymphnodes deteriorate

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The specific number of protons present in the nucleus of every an atom is called its...?

(A) Atomic Number
(B) Mass Number

(C) Atomic Mass
(D) Valance Number

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A region in a longitudinal wave where the particles are closest together is called...?

(A) Rarefaction
(B) Compression

(C) Crest
(D) Trough

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The step-up transformer ______...?

(A) Increases the input current
(B) Increases the input voltage

(C) Has more turns in the primary
(D) Has less turns in the secondary coil

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A man can survive without food for at least...?

(A) One month
(B) Two month

(C) Three month
(D) Four month

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Wind always blows from area of ________...?

(A) Low pressure to high pressure
(B) High pressure to low pressure

(C) Only low pressure
(D) Only high pressure

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