Answer:
There are eight major terrestrial biomes: tropical wet forests, savannas, subtropical deserts, chaparral, temperate grasslands, temperate forests, boreal forests, and Arctic tundra. ... Other biomes, such as deserts and tundra, have low primary productivity due to extreme temperatures and a shortage of available water.
Explanation:
Answer:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water
Answer:
The Fossil Record
Fossils provide evidence that organisms from the past are not the same as those found today, and demonstrate a progression of evolution. Scientists date and categorize fossils to determine when the organisms lived relative to each other.
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This pattern can be explained by the principle of natural selection. Natural selection. Natural selection is one of the basic mechanisms of evolution, along with mutation, migration and genetic drift. In natural selection those variations in the Genotype that increase the organisms chances of survival and procreation are preserved and multiplied from generation to generation at the expense of less advantageous ones.
