Please help
what is luster for a grey smooth stone

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled

What was the land like over 500 million years ago? what was under the sea?

The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.