Answer:
C) respiratory: Circulatory
Explanation:
Oxygen travels through the blood stream to muscles, and cells
"Social Darwinism<span> is a modern name given to various theories of society that emerged in the United Kingdom, the United States, and Western Europe in the 1870's, and which are claimed to have applied biological concepts of natural selection and survival of the fittest to sociology and politics", so, in therory, it would allow AND promote imperialisim, as many people are not within the same level of society.</span>
Cause waters wet so the acid from the water is not dry
Human reproductive cloning should not now be practiced. It is dangerous and likely to fail.
Bacteria may affect plants in a number of ways. Diseases have been mentioned, but most bacteria co-exist with plants quite easily. Several bacteria are involved with the transitions of nutrients and make nutrients such as nitrogen plant available (the plant is only able to absorb some nutrients in certain molecular forms). While other bacteria convert nutrients and toxins into forms unavailable to the plant.
Other bacteria make Some bacteria, Rhizobia in particular, develop symbiotic relationships with some plants. Rhizobia convert atmospheric nitrogen into ammonium which is plant available. In exchange, the plant provides Rhizobia with shelter (a root nodule) and food (photosynthates).
