Although some studies suggested the presence of water on Mars, the planet represents a hostile environment for human habitation. Scientists are currently researching ways to support potential human colonies on the Red Planet. Scientists have created closed ecosystem models that allow them to control factors such as moisture and temperature. In some of these closed ecosystems, plant growth experiments are being run using simulated Mars soil made of volcanic rocks from Earth. Given this information, in three to five sentences, describe one (nonplant) organism that could contribute to an important ecosystem service for this system and describe one ecosystem service that you benefit from due to your local ecosystem that is probably not available on Mars.

(4 points)

Dna is the genetic material that makes up living things, and folic acid plays an important role in the information of dna. jon wants to study the effect of folic acid on dna formation in microbes. which statement accurately describes the variables in this study

Which kind of aquatic ecosystem does the photograph most likely show? a. marsh b. swamp c. lake d. river

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis