The correct answer among the choices listed above is option D. The connection between the mother and the embryo that provides the embryo with oxygen and nutrients and waste disposal is the placenta. Hope this answers your question. God Bless.
Answer: Base pairs occur when nitrogenous bases make hydrogen bonds with each other.
Explanation: Each base has a specific partner: guanine with cytosine, adenine with thymine (in DNA), The hydrogen bonds are weak allowing it to "unzip"
ok this one is easy. the measurments are dividing by 2
2,1,.5,.25
so it would be
C: 0.2 meter.
The answer is non-living elements and living species in a specific local environment, like water, hope this helped you.
