Which physical property refers to the temperature at which a substance in a solid state transforms to a liquid state? A.
boiling point
B.
evaporating point
C.
freezing point
D.
melting point

The diagram shows a fossil of an ancient whale skull and a skull of a present-day whale. the ancient whale is extinct and is believed to be an ancestor of the present-day whale. what do these skulls most likely show that supports darwin’s theory of evolution? all populations can adapt and survive. only some organisms have a common ancestor. populations change slowly over time. populations rapidly become extinct.

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

Aboy with an extra x chromosome probably has which of the following syndromes?