The red-billed oxpecker (a bird) eats ticks off the fur of an impala (a type of antelope). the oxpecker receives food and removes the ticks from the impala.

Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.

Which statement best explains why cells were observed in more detail using a compound microscope than a simple microscope? a compound microscope has greater magnification ability than a simple microscope. the compound microscope was invented before the simple microscope. a compound microscope is much easier to manufacture than a simple microscope. compound microscopes were more common than simple microscopes.

Describe the structure of amino acid, including what makes amino acids different from eachother