Answer:
The above paragraphs describes that how salt- and fresh-water fish regulates their osmoregulation. Hence, the correct answer would be c. have adapted to deal with osmosis.
Osmosis is the process by which solvent's molecule move from region of low concentration (hypo-tonic) to the region of high concentration (hyper-tonic) through a semi-permeable membrane.
In sea-water fishes, the body fluids are hypo-tonic to the surrounding water and thus water is kept moving out of their gills. In order to prevent the excess water loss they need to drink water constantly and excrete concentrated urine.
In contrast, fresh-water fishes body fluids are hyper-tonic to surrounding water and hence, water keeps entering in their body through gills. So, in order to prevent excess dilution they absorb salt from surrounding with the help of gills and also their bodies reabsorb salt from urine.
Very... Reproduction at both the molecular level to help maintain and repair itself through production of cells is important for self-preservation. Additionally reproduction allows survival of genetic material to offspring.
<span>The correct answer is c. producer: elodea, consumer: squirrel, decomposer: crayfish, abiotic: phosphates.</span>
Elodea-the aquatic autotrophic plant (makes its own food) which does photosynthesis,
Squirrel-animal, heterotrophic organism (consume food which plant produce), <span>Crayfish- feed on animals and plants, either living or decomposing, and detritus,</span> <span>Phosphates-non-living, organic or inorganic molecule.</span>
During DNA replication, the hydrogen bonds must be broken between the complementary nitrogenous bases in the DNA double helix. Hope this helps! Maybe mark me the brainliest??
Hypothesis or prediction or theory
