Retroviruses also have the enzyme reverse transcriptase, which allows it to copy RNA into DNA and use that DNA "copy" to infect human, or host, cells.
What is DNA?
Humans and nearly all other species carry their genetic information in DNA, also known as deoxyribonucleic acid. The DNA of an individual can be found in almost all of their cells. The majority of DNA is found in the cell nucleus (where it is known as nuclear DNA), but there is also a tiny quantity of DNA in the mitochondria (where it is called mitochondrial DNA or mtDNA). Cellular organelles called mitochondria transform the energy from food into a form that can be utilized by cells.
Adenine (A), guanine (G), cytosine (C), and thymine (C) are the four
chemical bases that make up the code that stores the information in DNA (T). More than 99 percent of the 3 billion bases that make up human DNA are the same in every person.
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Well banana spider can be referred to 3 different kinds of spiders
1, the golden silk orbweaver (not poisonous?)
2, the argiope appensa (not <span>poisonous)
</span>3, the brazilian wandering spider (is <span>poisonous)</span>
A phytoplankton population would be affected by these changes by increasing the population of the phytoplankton. Low temperature of the ocean would allow for the phytoplanktons to bloom or reproduce. Therefore, high temperatures would slow down growth. This is because when water is warm there would be less mixing between the water layers and the nutrient rich water.
While both show the process of natural selection, vestigial structures no longer have a working function, but are still present in an organism. An example of this in humans is the appendix. To humans, it doesn't necessarily serve any function, but it is just there as part of the human body.
On the other hand, analogous structures are similar structures in different species that perform the same function. We can think of it as wings on a moth, bird, and a fly. While the three do not share a common ancestor, the structure of the wings are said to be analogous.
