Determining a substance's physical or chemical identity. What are the two main requirements for identification? The adoption of testing procedures that give characteristic results for specific standard materials and the number and type of tests needed to identify a substance to exclude all other substances.

5 0

3 years ago

1 - The visible differences between male and ........... that appear during the life are called ........... ............

erma4kov [3.2K]

Explanation:

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6 0

2 years ago

Offspring that result from sexual reproduction each have

Nostrana [21]

Answer: a haploid chromosome set from each parent

Explanation:

I infer this from the question which was “Offspring that result from sexual reproduction each have”

4 0

3 years ago