The answer is A, Viruses
Viruses cannot reproduce on their own , so they have to inject their DNA or RNA into the nucleuus of a cell. By doing this, the virus will take over that cells and within times, that cells will pop up and producing more viruses.
This reproduced virus will repeat the same process until our immune systems stop them
Answer:
Wegener thought all the continents were once joined together in an "Urkontinent" before breaking up and drifting to their current positions. But geologists soundly denounced Wegener's theory of continental drift after he published the details in a 1915 book called "The Origin of Continents and Oceans." Part of the opposition was because Wegener didn't have a good model to explain how the continents moved apart.
Explanation:
Large sources of fossil fuels are found in cold regions shows evidence of climate change.
<h3>What this map shows?</h3>
This map shows that large sources of fossil fuels are found in cold regions because fossil fuels are extracted from the living organisms body so in cold regions once there was a large number of organisms lived there. When they died the fossil fuel sources are formed.
So we can conclude that large sources of fossil fuels are found in cold regions shows evidence of climate change.
Learn more about climate here: brainly.com/question/17922964
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Answer:
to get the breast milk flowing
Explanation:
Some women have difficulty to let-down their milk. In such cases, oxytocin nasal spray is prescribed to help bring about let-down of breast milk
