Gain energy from inorganic minerals such as nitrates, hydrogen sulfide, iron, and sulfur.
a. chemotrophic autotrophic bacteria
b. phototrophic autotrophic bacteria
c. chemotrophic heterotrophic bacteria
d. phototrophic heterotrophic bacteria

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

Which type of respiration takes place when there is no oxygen present

How do plants obtain more sunlight a.) they lean towards the light b.)they grow straight up c.) they only live in sunny areas, like the tropics d.) they stay low to the ground