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A child is getting her first ice-skating lesson. She steps on the ice and immediately falls. What has the environment just provided her?
Flagella
Long, whip-like appendages that protrude from the cell body of certain prokaryotic and eukaryotic cells, used for locomotion or sensory functions.
Serial Endosymbiosis
The hypothesis that certain organelles such as mitochondria and chloroplasts originated as symbiotic prokaryotes that lived inside other free-living prokaryotic cells.
Mitochondria
Organelles found in the cytoplasm of most eukaryotic cells, responsible for producing energy through the process of oxidative phosphorylation.
Diploid
An organism or cell having two sets of chromosomes, typically one set from each parent, denoted as 2n.
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