For what purpose is the mineral halite commonly used?

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

How do the sperm cells get from the stigma to the ovules?