Answer:
Mnemonic devices help learning easier by coming up with some "nonsense" phrases like:
Please P Parenthesis
Excuse E Exponents
My M Multiplication
Dear D Division
Aunt A Addition
Sally S Subtraction
(Just an example)
Some might be more effective than others because they ae easier to remember.
Answer:
the arrangement of animals and plants in taxonomic groups according to their observed similarities (including at least kingdom and phylum in animals, division in plants, and class, order, family, genus, and species).
humanis. and change of patrons