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Wood first appeared in plants called progymnosperms.
Cnidarians have specialized stinging cells called cnidocytes
The form and orientation of desert plants reduces heat gain from the environment and facilitates coo
Changing leaf area: (a) following rainfall ocotillo plants of the Sonoran Desert develop leaves and
Aerial photo showing the placement of 24 study plots, each 50 m by 50 m, in the Chihuahuan Desert ne
A Gaucher cell showing accumulated fat stored in structures called lysosomes