Which of these will subtract members from a population? a. immigrantsb. emigrantsc. birthsd. shelters

The terrestrial planets are characterized by having a a.) silicate core b.) iron-rich silicate core c.) iron-rich metallic core d.) none of these

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

Using meiosis, the sporophyte produces spores that are .