I believe the correct answer is Oxygen Gas.
The earth's atmosphere is made up of many different molecules, therefore including the gases. Some common gases are nitrogen, oxygen, and argon, which are only present in traces of percentages. And the gas that occurs as a result of photosynthesis is our answer, oxygen gas.
Hope I could help! :)
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.
Answer:
what i think about it is the that navajo is more smarter then harsh in the envirementt
Explanation:
The answer is Damp forest floor
Red backed salamander or Plethodon cinereus is a species of small salamander that lives in the forest in North America. The salamander could have different color than red. Its color will be influenced by the number of neutrophile and lymphocyte which will be vary from red, yellow, orange, white or dark/lead.
