Consider the evolution of chordates, organisms with a hollow nerve chord. choose the organism most closely related to humans.
a) lamprey
b) sea star
c) lancelets
d) brittle star

Animals such as pronghorn antelope, bison ans badgers dot to the landscape. where are these animals located?

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

Drag each label to the correct location in the equation. not all tiles will be used. the density of mercury is 13.6 grams per cubic centimeter. complete the steps for converting 13.6 g/cm3 to kg/m3. (1 kg = 1,000 g, 1 m3 = 106 cm3)