Mammals do; I'm in my science class
<span>Out of the choices given, the speed of weaving does not affect the quality or pattern of cloth as it is woven on a loom.</span>
Ferns are both seedless and vascular
The yolk sac functions to form blood cells in early development (embryonic phase) for nourishment of the embryo and early fetus. Towards the end of the 1st trimester, the yolk sac disappears and the placenta takes over for the fetus.
