Adjective used to describe your 1st set of teeth & plants that shed their leaves seasonally
Oxygenated hemoglobin is this color
For an adult elephant it can be up to 1 1/2" thick & weigh about a ton yet can be pierced by an insect
Dizygotic twins are more commonly known by this brotherly name
The fruit of the dandelion is designed to be dispersed by the wind & the fruit of the coconut by this
Euglenas are microscopic organisms scientists classify in both of these groups
They're your smallest blood transport tubes & in some the red cells have to go through single file
Crocodilians are the only reptiles in which this organ has 4 separated chambers
The armadillo possesses the endo- & exo- types of this support structure
E. coli, one of these found in humans, is often used in genetic studies