What kind of birds have three front toes/ one back toe without webbing and claws?

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

15 ! come and answer! a(n) disease is caused by a pathogen and can spread among organisms. a infectious b noninfectious c toxic d contaminated

Has anyone taken the genetics unit test in connexus? not looking for answers, just a little bit what to expect and some with studying.