<span>evidence for copper alloy or bronze casting in Sub Saharan Africa.</span>
Xx - female. Xy - male. egg already has an X chromosome so it depends on the other. If second one is X than it's a girl. If Y - a boy
Water travels from roots to leaves, where it is used for photosynthesis.
The organs of the urinary system are organs of excretion—they ... filter the blood to remove metabolic wastes and then modify the resulting fluid, which al- ... But in the kidneys, we find an unusual capillary bed that is both...
An autotroph produces its own food while a hetertroph has to find it/hunt for it/gather it
Examples~
Autotroph-Sunflower
Heterotroph-Wolf
