A cross-sectional view of a log shows a concentric pattern. Which part of the stem gives rise to this pattern?
B. Xylem
as it contribute for most of a tree's growth in diameter.
On the off chance that I was a safeguard lawyer contending in court for shielding a coral reef from hurtful human exercises I would give particular contentions in the guard of this environment in the matter of why it must be ensured. I would first delineate that despite the fact that the coral reefs possess just 0.2% of the sea floor they give such imperative biological administrations. They go about as a characteristic boundary and ensure around 15% of the world's coastlines that would be harmed and devastated by disintegration from waves and tempests. They additionally give living spaces to about a fourth of the majority of the marine living beings. Next, I would depict how financially imperative coral reefs are. Coral reefs make up about a tenth of the world's worldwide fish catch and one-fourth of fish found inside creating nations.
im not positive but i think in the chemical bonds of molicules but id check google first
Answer:
They help equally devide the cell.
Explanation:
Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle.
SOURCE: Nature.com
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We breathe in air, not straight oxygen. Attached is a pie chart showing roughly what percentage of what is in the air we breathe
