¿Cuales son las principales diferencias entre
las mitosis la
meiosis?

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

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.

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone