The structure that connects the placenta to the embryo would be the <u>umbilical cord.</u>
Answer: Ribose nucleotides and the nitrogenous bases
Explanation: RNA consists of ribose nucleotides (nitrogenous bases appended to a ribose sugar) attached by phosphodiester bonds, forming strands of varying lengths. The nitrogenous bases in RNA are adenine, guanine, cytosine, and uracil, which replaces thymine in DNA.
Liquid: D
Gas: B
Solid: C
Plasma: A
Hopefully these are correct.
Have a great day :)
<span>The pros of having this rock plug is that the plug is protective and makes it so that Vesuvius is not likely to erupt again and the magma below has cooled and is harmless. The cons are that if there is another eruption, it will be deadly and create an avalanche of gas, rocks, and hot ash.</span>
The ocean acts as a neutralizer to the carbon cycle. The ocean absorbs most of the excess co2.
