Answer:
A. YY x yy
Explanation:
Y Y
y Yy Yy
y Yy Yy
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<span>If a multicellular organism contains chlorophyll c but no silica, it belongs to </span>Phylum Phaeophyta.
The correct answer is flight feathers.
<span>Flight feathers are the long and asymmetrically shaped feathers which have the function to enable flight by generating thrust and lift. Flight feathers found on the wings are called remiges while those found on the tail of a bird are called rectrices. Flightless birds also contain flight feathers, but in radically modified forms.</span>
Molecules contain instructions for cells to function.