Question 1 (1 point) 1. The arctic tundra is a fragile ecosystem. Use the pictures and descriptions in section 2 to answer the following:
Based on your observations of the ecosystem, which of the following characteristics is TRUE about the fragile tundra
ecosystem?
A. The ecosystem has more species than any other ecosystems.
Оа
Ob
B. The ecosystem has many kinds of species that live under the water.
ос
C. The climate is harsh, which limits the number of species that can live there.
Od
D. There are large predators like the polar bear that rarely impact the ecosystem.
Question 2 (1 point)
Take a look at the man below It shows the diversity and scale of terrestrial
blone

Explain two reasons you think it is important for scientists to search for new ways to treat cancer

Red flowered snapdragons are crossed with white flowered snapdragons, producing all pink snapdragons in the f1 generation. what would you expect if you crossed pink with pink? 3/4, 1/4, 1/2 red, 3/4,/1/2,/1/4 pink,1/2, 3/4, 1/4 white

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