In the system used to classify all organisms, which of the following is true?All groups have the same number of organisms. Organisms in the same group have similar characteristics. The largest groups have the most important animals. Organisms are placed in groups by how big they are.

B. Organisms in the same group have similar characteristics.

Explanation:

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the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation:

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.