Based on the law of conservation of matter, which statement is true about a chemical reaction?
А
Mass stays the same.
B
Matter is created.
С
Matter is destroyed.
D
Matter in a reaction can never change states.

Agene with the original sequence of atgtt—tact underwent substitution mutation to form atatt—tact after a few generations. tact is a part of a muscle protein encoding region, and atgtt codes for a digestive enzyme. what will be the effect of this mutation? a. the production of muscle protein will be affected. b. the production of digestive enzymes will be affected. c. the production of both the protein and the enzyme will be affected. d. the production of neither the protein nor the enzyme will be affected.

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z