Answer: dna and rna have four nitrogenous three of which they share Cytosine, Adenine, and Guanine the differs between the rna has Uracil and the dna has thymine but dna is doubled stranded and rna is single stranded
Thymine
Explanation:
<span>Aphotic zone (bathypelagic zone)</span><span> The region of a lake or sea where no light penetrates; it is situated beneath the </span>euphotic zone<span>. The aphotic zone contains no algae or phytoplankton, and its inhabitants are exclusively carnivorous animals or organisms that feed on sediment or detritus, all reliant on energy inputs from the euphotic zone. It extends downwards from a depth of about 1000 m, or less in turbid waters, and includes the </span>abyssal zone<span>.</span>
It is believed that this happens because some signals that regulate development are the same between different species and because <span>they share ancient genes. </span>These ancient genes are expressed during a middle "phylotypic stage" of embryonic development for all species.
For example, human and animal embryos go through very similar stages of early development and share similar features such as tails and gill-like structures. The major difference appears to be how long it takes to reach each of these same stages.
To have an overall positive or negative charge. (as opposed to neutral one)
