Name the important process involving DNA that must occur prior to mitosis so that each daughter cell can have the proper number of
chromosomes.

Which best explains how this maneuver unblock a person's airway?

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

Explain why ecosystem diversity results in species diversity in a healthy biosphere