Evolution Flashcards
Lamarck’s Theory’s 2 Major Principles
Use and Disuse
Inheritance of Acquired Characteristics
more an animal uses a body part 🟰 more developed it becomes (and vice-versa)
use and disuse
Characteristics an organism develops or acquires in its lifetime can be passed on to its offspring
Inheritance of Acquired Characteristics
slow, gradual change in a species over time
evolution
Species with short reproductive rates like _____ evolve quickly
bacteria
Any trace or remains of an organism that has been preserved by natural processes.
fossil evidence
Similar internal structure, but different form and function
homologous structure
Similar external form and function, but different internal structure
analogous structures
Structures that are remnants of structures that were functional in ancestral forms, but are now reduced in size and serve little or no purpose
vestigial structures
Comparing embryos at various stages of development may show similarities not present after birth
embryological evidence
Technique used to separate DNA fragments according to their size.
gel electrophoresis
used to determine the exact sequence of bases (A, C, G, and T) in a DNA molecule
dna sequencing
represent number of differences between protein samples.
Protein analysis or Amino Acid Sequencing
evidences can be:
structural
molecular
Explains the diversity of life on Earth.
signifiance of evolution
