Answer:
A. DNA polymerase
Explanation:
DNA polymerases (I,II,III) proofread the DNA, which helps to catch errors. Errors can be fatal to expression, creating misformed proteins or unclear information, so this is necessary.
Fun facts - the coronavirus is a retrovirus, so it doesn't proofread. That makes it much harder to find a vaccine, because it can generate new strains by the very fact of not proofreading.
The organisms that are most closely related (based on the tree above described) are dinosaurs and crocodiles . Thus, option "4" is correct.
<h3>What are Evolution and phylogenetic trees?</h3>
Evolution refers to the natural process of descendence with modification, which is mainly due to natural selection.
Evolution leads to speciation, thereby species are related and they show evolutionary relationships.
A phylogenetic tree is a diagram that represents evolutionary relationships between species that share a common ancestor.
In conclusion, the organisms that are most closely related (based on the tree above described) are dinosaurs and crocodiles.
Thus, option "4" is correct.
Learn more about phylogenetic trees here:
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Answer:
Fungi compete with bacteria for resources
Explanation:
Alexander Fleming discovered the Fungi called Penicillium notatum. He discovered that his culture was contaminated by a Fungi mold and the Bacteria in the culture were dying.
He figured out the mold as the cause and found it to be Penicillium. He also discovered the death was caused by the competition of fungi and bacteria for available resources and the fungi’s interference with the cell wall(cell lysis) of the bacteria.Several years later after technological advancements and researches , the fungi was extracted and isolated and produced in large quantities as a potent antibiotic.
The statement which describes the dependent variable would be the measured variable. We usually use the independent variable and manipulate it and change its levels to see how the levels of the measurable (dependent) variable change.
Answer:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. ... While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration
