C. a group<span> of</span>individuals<span> of a </span>species plus all<span> of the </span>other species<span> with which </span>they<span> intera</span>
In humans, the yolk sac is the
site of origin for blood cells and primordial germ cells. The human yolk sac is
a membrane located outside the embryo and it is connected by a tube through the
umbilical opening to the embryo's midgut. The yolk sac serves as an early site
for the formation of blood and in time, is incorporated into the primitive gut
of the embryo.
Answer:
Pest control is helpful I guess...
Explanation: Pest control uses lots of chemicals and poison stuff to kill those vexing pests but most importantly it kills them its a dangerous job if you don't know what your doing.
True millions of different species live on coral reefs
I think A but not sure rly
