<span>Mutations that increase fitness is type of mutations do scientists look for in a molecular clock. </span>
To solve the stability problem, Bohr modified the Rutherford model by making sure that the electrons move in orbits of specific size and energy. The energy of an electron depends on the size of the orbit and is lower for smaller orbits. However, radiation can only happen when the electron jumps from one orbit to another.
Answer:
A) many noncoding stretches of nucleotides are present in mRNA.
Explanation:
A transcription unit in eukaryotes includes the region that code for mRNA extending from the 5' cap site to the 3' poly-A site. It also includes the controlling regions. The mRNA formed by transcription also has some non-coding intervening sequences. These are called introns. Introns are removed from the primary transcripts by the process of splicing that occurs after transcription.
Therefore, a transcription unit that is 8,000 nucleotides long may use only 1,200 nucleotides to code for a protein having 400 amino acids since the rest of the nucleotides are part of introns and are removed from mRNA after transcription.
Answer:
individual feeding relationships between organisms.
Explanation:
When we try to explain the abundance accumulated by each link in the food chain, it can be observed that both the magnitude of individuals and biomass decrease rapidly from plants to predators. By sorting the information in this way, we get a graph in the form of a "pyramid".
Turtles can be aquatic, semi-aquatic, or mostly terrestrial. Tortoises are turtles that live on land and aren't equipped for water.
(hope this helps ^^)
