Which of the following best explains how substances
are transported across the cell membrane?
Choose 1
©
Carbohydrates freely move across the cell membrane.
®
lons freely move across the cell membrane.
Nonpolar gases move across the cell membrane
through embedded transport proteins.
Hydrophilic amino acids move across the cell
membrane through embedded transport proteins.

In which of the following relationships is one organism always benefited while the other organism is always harmed

Pls need ! in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere