Think of or research examples of mutualism, commensalism, and parasitism.

Identify an example of each type of symbiosis. Explain why it is an example of symbiosis.
Explain the relationships of the organisms.
Post each of your examples, your justification for selection, and the explanations of the relationships.

Which of these is not a nucleotide base found in dna?

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere

Agene editing technology called crispr-cas9 uses cellular machinery to change the cell's genetic material. how might this technology be useful in treating diseases like cancer?