True false combustion, or burning, is a kind of oxidation. rain forest plants produce about percent of the oxygen in our atmosphere. when photosynthesis takes place in green plants, oxygen atoms are freed by the splitting apart of . a. true b. false oxygen atoms do not combine with many other elements.

Which of the following sex and generation combinations directly produces the pollen tube of angiosperms? a) male gametophyteb) female gametophytec) male sporophyted) female sporophyte

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

What noticeable trend from this graph might be used to make a conclusion?