I would say photosynthetic bacteria are the most important, because if they disappeared most of the oxygen in the atmosphere wouldnt be here and complex life like humans wouldnt exist
Answer:
The acidity level of water is measured by the pH scale. Pure water has a pH of 7, which is neutral. However, natural rainwater actually has a pH of 5.6 because it gets exposed to the gases in the atmosphere, making it a bit acidic. True acid rain will have a pH level measuring from 5.0-5.5.
The sender is.....Nucleotides. DNA is made of chemical building blocks called nucleotides.
See the file I attached for more information
Answer: The image at the top right corner of the page is the answer.
Explanation:
In the food web, arrows are pointed towards the consumer (not otherwise). In essence, two arrows should be pointed towards mouse, since it feeds on both algae and grass. While a single arrow is to be pointed to wolf, since it only feed on mouse.
Thus, the image at the top right corner of the page is the answer.