Aspecies is a group of similar organisms that a. can mate with each other and produce fertile offspring. b. can live together on an island. c. can migrate to an island from the mainland. d. all have exactly the same traits.

What does it mean for a cell membrane to be selectively permable

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.

Drag the tiles to the correct boxes to complete the pairs. match each cell organelle with its description.