Answer:
The proportion of oxygen went up because of photosynthesis by plants. The proportion of carbon dioxide went down because: it was locked up in sedimentary rocks (such as limestone) and in fossil fuels. it was absorbed by plants for photosynthesis.
Explanation:
Phenotypic ratio is comparing the number of dominant genes to the number of recessive genes
so like let's say there are 3 dominant genes and 1 recessive, you'd write the ratio like this
Dom:Rec
3:1
Answer: it is where cellular respiration occurs
Explanation:
Answer:
hope i helped but i think its b or d
Explanation:
Answer:
a
Explanation:
It cools rapidly and contains dark minerals. :)
