1. Agriculture has to do with farming, cultivating the soil and growing crops, as well as rearing animals to provide food, wool, and other products. Aquaculture, or aquafarming, has to do with farming of fish, <span>crustaceans, molluscs, aquatic plants, algae, and other aquatic organisms. 2. Recreation has to do with spending leisure time, be it in zoos, aquariums, etc. 3. Biological control has to do with </span><span> controlling pests such as insects, mites, weeds and plant diseases using other organisms, such as parasitoids and pathogens. 4. Genetic conservation </span>applies genetic methods to the conservation and restoration of biodiversity.
Since ratio means the quantitative relationship between two
values which the frequency of one value is contained within the second value.
In this case, it is only 1:1 which means that whatever the number indicated in
the first value is equal to the second value.
Explanation: oxygen poor blood from the right ventricle into the lungs, where the oxygen enters the bloodstream. The pulmonary veins bring oxygen rich blood to the left atrium.
