A cycad plant, like the one pictured, is an example of a gymnosperm. What makes a gymnosperm different from an angiosperm?

It has flowers.

It has fruit to protect seeds.

It has vascular tissue.

It has exposed seeds.

Metamorphic rocks are formed when sedimentary or igneous rocks are subjected to heat or pressure and recrystallize without melting. which of the following rocks results from the metamorphism of limestone? a. granite b. slate c. sandstone d. marble

There are only about 250,000 known fossil species. true or false

The diagram shows a chicken embryo and a human embryo