The horsehoe crab because it was one of the first animals to ever live on earth
The basic units that are put together over and over to build a strand of dna are called as nucleotides.
<u>Explanation:</u>
DNA is a heteropolymer that involves many monomers that is the nucleotides that are joined together by phosphodiester bonds in order to develop a complete DNA. The nucleotides consists of nitrogenous bases, phosphate groups and the sugar molecules that are bound together to form a complete nucleotide. The phosphate groups form a backbone through which the nucleotides are joined together.
Answer:
Yes!
Explanation:
From largest to smallest: biosphere, biome, ecosystem, community, population, and organism. Hope I helped :)
It'd Be Lovely to get Brainliest .
Answer:
The backbone of the helix attached to the sugar, in between the Deoxyribose sugar
Explanation:
Two strands of DNA form a twisted ladder-like structure by wrapping around one another. The deoxyribose and phosphate units that make up the backbone of each strand alternate in direction. Adenine (A), cytosine (C), guanine (G), and thymine (G) are the four bases that are joined to each sugar (T).
Answer:
Carbon's valence is ±4.
Explanation:
Valency corresponds to the group;
Group 1 has valency +1
Group 2 has valency +2
Group 3 has valency +3
Group 4 has valency ±4
Group 5 has valency -3
Group 6 has valency -2
Group 7 has valency -1
Group 8 has valency 0
The valency refers to how many bonds an atom will make in forming a molecule/compound;
This is also referred to as the combining power of an atom.
