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Malpighian tubules are excretory organs found in : Vertebrates, Flateworm , Insects , Annelids
Living cells of cartilage are called : Osteoblasts, Osteocytes, Choanocytes, Chondro-cytes
Hormones oxytocin and vassopression are believed to be produced in : Thalamus, Hypothalamus, Hippocumpus, Amygdala
Plant hormone forigin is produced in : Flower, Roots, Stem, Leaves
times due to the uptake of : Light, Oxygen, Carbon dioxide, Water
Crossing-over produces genetic variations necessary for : Mutation, Evolution, abnormalities, Non-disjunction
Grass-lands with no woody trees are called : Parairies, Desert, Tundra, Savanna
A short food chain of two or three links supports a community : Efficient, More efficiently , Inefficiently , less efficiently