For about how many years of geological time have humans existed on earth

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

In pea plants, the allele for inflated pod seed, i, is dominant over the allele for constricted pod seed, i. the punnett square shows a cross for this trait. which offspring will be homozygous dominant

Drag each tile to the correct location. match each trait that an organism displays to a reproductive strategy.