the answer is A. covalent bonds
D.it is d im sure bcz they seem to be correct
A singularity did.
A singularity is an infinitely small and infinitely dense point of matter from which the universe came. The big bang theory suggests that the big bang was like a balloon inflating from that infinitely tiny point into the universe we know today. There is plenty of evidence about this.
Answer:
Explanation:
In RNA (ribonucleic acids), the nitrogen bases are:
- Adenine
- Guanine
- Cytosine
- <em>Uracil</em> (there is thymine in DNA, but not in RNA)
The bases pair like:
- Adenine (A) with Uracil (U)
- Cytosine (C) with Guanine (G)
So, the base pairs for RNA are <u>A with U </u>and <u>C with G</u>
Hihi!
The answers are that there are bones in mammals and inside of echinoderms there are calcium rich plates! If you have any further questions please feel free to message me!
I hope I helped!
-Jailbaitasmr
