A Major Difficulty Facing Systematists Is

question 56

Multiple Choice

A major difficulty facing systematists is

• A) placing specimens into the predefined taxonomic categories of species and genus.
• B) understanding the sequence of cell divisions in the early embryology of plants and animals.
• C) distinguishing similar features due to common ancestry from those due to convergent evolution.
• D) distinguishing anatomy from physiology in plant evolution.
• E) sequencing DNA.

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Definitions:

Reaction

A process in which substances, the reactants, convert into different substances, the products.

Ether

A compound of organic nature identified by having an oxygen atom bonded to two alkyl or aryl groups, following the general formula R-O-R'.

Fragmentation

A process in mass spectrometry where a molecule breaks into smaller pieces or fragments, used to identify or quantify the molecule.

Ethers

A class of organic compounds characterized by an oxygen atom connected to two alkyl or aryl groups, known for their diverse applications in solvents and synthesis.