Answer:
Nitrogen is present in the atmosphere in a molecule form about 78 percent. This nitrogen comes to the earth with the water through rainfall. Some nitrogen fix by beneficial microorganisms such as Cyanobacteria and Azotobactor which are present in the roots of higher plants. These microorganisms convert nitrogen molecule into nitrates and used by the plants. There are some other microorganisms which again convert nitrate into nitrogen molecules, called denitrifying bacteria and nitrogen molecule goes to the atmosphere again and complete the cycle.
answer:
c) if, then statement **you chose the correct answer**
explanation:
the hypothesis is an educated guess as to what will happen during your experiment. the hypothesis is often written using the words <u><em>if</em></u> and<em><u> then. </u></em>for example, "if i don't study, then i will fail the test." and since c) is the only answer choice that matches this description, c is the correct answer
good luck :)
i hope this helps
brainliest would be highly appreciated
have a nice day!
Answer:
D. They float on convection currents in the mantle.
Explanation:
Answer:
I see an apple tree in my yard every day. I know that it is a plant because it has a root, stem, leaves, flowers, and fruit.
Explanation:
Hope this helps!!!! :D
Answer:
The correct answer is option d.
Explanation:
An illustration of epigenetic change is a microbe, which can stimulate modifications in the host DNA, causing suppression of defenses or weakening of individual cells. Epigenetic changes modify the physical composition of DNA.
One of the examples of epigenetic change is DNA methylation. DNA methylation refers to the supplementation of methyl group, which inhibits some of the genes from getting expressed. One of the conditions of DNA methylation is cancer.
In the majority of cancer, the tumor cells go through global hypomethylation. The tumor suppressed genes seem to turn highly methylated in the conditions of cancer.
