lizbethmillanvazquez
12.01.2020 •
Biology
What is the correct order of development in sexual reproduction?
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Ответ:
answer
Explanation:
The stages of fertilization can be divided into four processes: 1) sperm preparation, 2) sperm-egg recognition and binding, 3) sperm-egg fusion and 4) fusion of sperm and egg pronuclei and activation of the zygote.
Ответ:
When you cut down a tree, its roots remain in the ground. They absorbed carbon too, and for most trees that is a considerable fraction of their total mass. The decay of roots over time leave much of the carbon as part of the soil structure, so that remains fixed for long times.
The leaves, needles, seeds, cones, twigs and other parts will have become part of the topsoil too. Over the life of a tree, much more carbon is stabilized than just what is in the cut tree.
The wood from trees that have been cut down may get used in buildings and other products that can last for centuries.
Explanation: