A sugar, a phosphate group, and a nitrogen base
In 1885 Virchow said that all cells exist from pre-existing cells
<h2>Ur Answer:-</h2>
The cambial ring becomes active and starts cutting off new cells; both on the inner and the outer sides. The cells which are cut off towards the pith mature into secondary xylem. The cells which are cut off towards the periphery mature into secondary phloem.
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Answer:
d
Explanation:
bc it’s the deepest part so it is gonna take longer to heat up.
Sunspots are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas. They are regions of reduced surface temperature caused by concentrations of magnetic field flux that inhibit convection. Sunspots usually appear in pairs of opposite magnetic polarity.
