Unit 7 Vocab: Unity & Diversity

Front

Structure with no function, leftover from ancestors

Back

Vestigial Structure

Front

Features of different species that are similar in function but evolved independently due to similar environmental challenges.

Back

Analogous Structure

Front

Similar physical features in organisms from a common ancestor serving different functions.

Back

Homologous Structure

Front

Made of all fossils on Earth

Back

Fossil Record

Front

Simpler cell type without membrane-bound organelles

Back

Prokaryotic Cells

Front

Complex cell type with membrane-bound organelles, like a nucleus.

Back

Eukaryotic Cells

Front

Diagram showing relationships between species

Back

Cladogram

Front

Organisms better adapted to their environment survive and reproduce.

Back

Natural Selection

Front

Change process making an organism better suited to its environment

Back

Adaptation

Front

Used to understand species evolution through homologous structures in early embryonic development.

Back

Embryonic Development