That statement is true because The amount of energy at each trophic level decreases as it moves through an ecosystem at least is 10% of the energy at any traffic levels transferred to the next level the rest is lost largely through the metabolic process as heat.
Answer:
dissolved oxygen
Explanation:
it is because every animal whether on land or water needs oxygen.
Because each parent contributes to their child 23 chromosomes, so therefore each parent gives their child half of the DNA of the child.
It wouldn't be 30% or 70% because the balance of the chromosomes the parents contribute is always equal.
Answer:
Addition of poly A tail and and addition of 5' cap
Explanation:
In eukaryotes, many post-transcriptional modification takes place like 5' capping, polyadenylation, and splicing. In 5' capping 7-methyl guanosine is added toward the 5' end of mRNA by the action of a enzyme called guanyl transferase. This cap protects mRNA from degradation.
In polyadenylation up to 250 adenosine nucleotides are added at the 3' end of the mRNA and it is called poly-A tail. Poly A polymerase is the enzyme that is responsible for polyadenylation.
Therefore two main post transcription modifications are 5' capping and polyadenylation.
