The answer is D. Iodine is used to test for starches and, in the presence of a starch, it will turn a dark blue-black color.
Fault Lines. They are weak points in the crust of the earth.
Producers are: acorns, apple trees, cabbage, carrots, potatoes, grains, grass, corn and lettuce
consumers are: owls, frogs, rabbits, chickens, squirrels, cows and worms
predators are: eagles and wolves
yes there were more producers than consumers and consumers than predators.
If the grain was no longer available for the mouse to eat, the mouse would not survive, and therefore the predator that relies on eating mice to survive wouldn't survive either. The grain not being available would completely disrupt the ecosystem
Answer:
B) Na+
Explanation: Na+ molecule is polar, oxygen and carbon dioxide are nonpolar molecules. The cell membrane is a <em>phospholipid bilayer</em> made up of lipid molecules with polar and nonpolar ends. Since it is a bilayer, two phospholipid layers are arranged, one on the other in such a way that one faces the back of the other. The non polar ends are away from outside and inside of the cell, while the polar ends faces towards all the molecules inside and outside the cell.
Since polar-polar molecules repel each other, Na+ can't pass through the cell membrane easily. So it uses the proteins attached the cell membrane inside and outside to transport such molecules by using energy in terms of ATP.
Answer:
Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.
Explanation:
