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Amniotic Egg- An amniotic egg is one that contains a thin membrane that forms a closed sac about an embryo or fetus of a reptile, bird, or mammal.

                                      
C4 plant- Plants are plants which use more carbon to grow than average plants.

Pollen-A fine powdery substance, typically yellow, consisting of microscopic grains discharged from the male part of a flower or from a male cone

Heterotroph- An organism that cannot synthesize its own food and is dependent on complex organic substances for nutrition.

C3 plant- Plants that assimilate atmospheric carbon dioxide directly via the enzyme ribulose