Calcium phosphate and Calcium carbonate in bones are secreted by …………….
A) Bone marrow
B) Osteocytes
C) Collagen
D) Matrix
Answered Feb 05, 2023
Correct option is D) Matrix
(C) 1.6 g Law of constant proportional, state that "the individual elements that constitute a chemical compound are always present in a fixed ratio (by mass)". This ratio does not depend on the...
C) calcium phosphate & calcium carbonate
B) Sodium carbonate
Correct option is B) Mollusca
B) i – z, ii – x, iii – y
Correct option is C) CO2
Calcium carbonate (CaCO3) occur naturally in the form of chalk, limestone and marble.
Calcium carbonate is soft, light, white powder. It is practically insoluble in water.
Correct Answer - A Both A and R are correct and R is the corret explanation of A .
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