A scientist observed a fungus and recorded what she saw:

• orange in color
• found on the surface of a leaf
• tightly arranged hyphae
• contains cell walls

The scientist most likely observed which fungus?

yeast, because it contains cell walls
rust, because it has tightly arranged hyphae
yeast, because it has tightly arranged hyphae
rust, because it contains cell walls

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat