Answer:
Liver
Explanation:
Eukaryotes are organisms that are made up of cells that have a membrane-bound nucleus. They are commonly described as cells with a "TRUE" nucleus. Animals and plants are eukaryotes.
Since it says "Animal" we can cross out oak, because this is a plant. Viruses are not cells, they are not considered living organisms as well. Lactobacillus is a type of bacteria and bacteria is classified as prokaryotic.
Prokaryotes are different from eukaryotes because they lack that membrane-bound nucleus.
the crabs are taking out the other burrows so that they have a better shot at breeding and reproducing
Watershed is the place where water of rain and snow get stored. The watershed contains surface water-and wetlands--and all the underlying ground water,lakes, streams, reservoirs. Lake is the major component of the watershed . The watershed can be used for various purpose like dams, hydrological modification etc.
Artificial selection, also selective breeding occurs when humans breed individuals that have specific characteristics that they want to manipulate.