Answer:
B
Explanation:
a conclusion is a definite wrap up to a theory or experiment, in option A the experiment is ongoing, option c, the option is still a theory, option D is your question that made you experiment not the conclusion, therefore b is the conclusion since it gives a definite answer to the problem/experiment
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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:
the first one is increase and the second one is cell differentation
Explanation:
The impact of invasive species is that it may cause environmental harm, economic harm, or impact human health.
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The solar system is considered a natural system because it was made and controlled by natural forces, meaning, it was never influenced with human creations. It is considered as one of the products of the phenomenon of the physical world. Hope this answer helps you.
