Two rows of transition metals are placed at the bottom of the periodic table to save space. elements in the first row are called what

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

What is the average speed of a car that traveled 300.0 miles in 5.5 hours

Adescription of a type of bio biotechnology (genetic engineering, cloning, or artificial section) one benefit or one risk for the individual (based on whether you are for or against it) one benefit or one risk for society (based on whether you are for or against it) one benefit or one risk for the environment (based on whether you are for or against it)