They have a back bone
They are cold-blooded
Breathes through skin
(extras)
they go though metamorphosis
and they hatch from eggs! <span />
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.
The answer is true for both 13 and 14. im not positive but i have just recently gone over this.
Answer:
C
Explanation:
Runoff occurs when there is more water than land can absorb. The excess liquid flows across the surface of the land and into nearby creeks, streams, or ponds. ... Glaciers, snow, and rain all contribute to this natural runoff. Runoff also occurs naturally as soil is eroded and carried to various bodies of water.
Answer:
uracil, adenine, cytosine
Explanation:
The anticodon of tRNA binds to the triplet codon of mRNA. Adenine of tRNA would pair with uracil of mRNA codon. Uracil of the tRNA anticodon would pair with adenine of the mRNA codon. Similarly, the guanine of the tRNA anticodon binds to the cytosine of the mRNA codon. The codons of mRNA are read from 5' to the 3' direction. And the polarity of the anticodon of tRNA is opposite to that of the mRNA codons. Therefore, if a tRNA anticodon has a sequence of "Adenine, Uracil, Guanine", it would pair with the mRNA codon with a sequence "uracil, adenine, cytosine".
