Answer:
DNA double strands are run in opposite direction
Explanation:
The DNA is a macromolecule and is made of the polynucleotide. In a DNA, Polynucleotides are arranged in two strands or helices. The two strands are joined together by hydrogen bonds. Each stand has two ends. One end is called 5’ (5 prime) and the end is known as 3' (3 prime). The two stands in a DNA run in antiparallel or in an opposite direction. It means at one end, one strand is 3' and the other is 5' and at the other end one strand is 5' and another strand is 3'.
Answer:
Human impacts on marine ecosystems. Human activities affect marine ecosystems as a result of pollution, overfishing, the introduction of invasive species,and acidification, which all impact on the marine food web and may lead to largely unknown consequences for the biodiversity and survival of marine life forms.
B. Nuclear power produces harmful radiation
Cytokinesis is: the cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
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They either eat other organisms, or they produce their own food..
