Which layer of the eye contains the sensory receptors for sight?

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance