The embryos of both mammals and reptiles are protected by amniotic fluid. What is this type of trait called? * a. cladogram
b. outgroup
c. derived
d. molecular evidence

The image shows embryos of three vertebrate classes

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?

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute