Which choices below allow for primary succession to take place?

select one or more:
a. burned out forest
b. glacial till
c. lava flow
d. sand dunes

Which best explains why there are 64 possible codons in the genetic code and only 20 amino acids that make protiens of living organisms on earth

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)

Adoença vitiligo afeta qual doença do corpo?