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Sergeu [11.5K]
3 years ago
13

Physical properties are those that an object or trace evidence has with just its physical existence, without altering it in any

way with chemicals.
Biology
2 answers:
lesya [120]3 years ago
8 0

Answer:

true

Explanation:

fomenos3 years ago
4 0
The answer is true for this question...
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This will explain, I hope it helps

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What is an angiosperm? Provide 2 examples. PLEASEE
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Explanation: ^

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2 years ago
design an experiment to test substances X, Y, and Z to determine which one is a catalyst for the reaction.
Fynjy0 [20]

Answer:

A+B C. Only one of the unknown substances is a catalyst, and the others are nonreactive with A, B, or C. When 10 mL of A is added to 10 mL of B the reaction takes twenty seconds. Bubbles form when the product C is created. The student prepares three test tubes, each containing both reactants A and B. She adds unknowns X, Y, and Z to test tubes 1, 2, and 3, respectively.

8 0
3 years ago
What is the general term for the biochemical makeup of the antigens of the rh system?
Lynna [10]

Protein is the general term for the biochemical makeup of the antigens of the rh system.

<h3>Protein </h3>

Proteins are substantial biomolecules and macromolecules made up of one or more extended chains of amino acid residues. Among the many tasks that proteins carry out in living things include catalyzing metabolic processes, replicating DNA, responding to external stimuli, giving cells and organisms structure, and transporting substances. Proteins differ from one another principally in the order of their amino acids, which is determined by the nucleotide sequence of their genes. This causes proteins to fold into a certain 3D structure, which controls their activity. The term "polypeptide" refers to an ordered chain of amino acid residues. One or more lengthy polypeptides must be present in a protein.

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Answer:

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