True, a lot of cultivated fields use fertilizers that can be harmful to fish
I think the correct answer would be A. The yolk sac becomes the placenta. It is membranous sac that is attached to the embryo. It provides all the nutrition and the blood cells needed by the embryo. It is also called the umbilical vesicle.
The only mutations<span> that matter to large-scale evolution are those that can be </span>passed on<span> to </span>offspring<span>. These occur in reproductive cells like eggs and sperm and are called germ line </span>mutations<span>. A single germ line </span>mutation<span> can have a range of effects: No change occurs in phenotype.</span>
Answer:
Yes this is correct. 160, the base, times 32, the height, equals 5120 cubic centimeters
We refer to the cells that develop differently and do different types of jobs in the body as specialized cells.The correct answer to this question will be C.
