Answer:
The reason why cities tended to develop in the region of the fall line of rivers is because of the need to offload goods from the ships since navigation will be hindered at the zone.
Explanation:
Fall line is a region that separates the upland or mountainous zone from the lowland river bodies, where waterfall also occurs. The waterfall in this region tends to expose the beneath bedrock materials and stop the movement of riverboats and ships upstream. Therefore, the boats must offload their goods, which tends to induce the formation of ports and majorly settlement by commercially oriented people who are willing to utilize the opportunity to trade on the commodities offloaded. The emergence of cities along the river fall lines is owing to this reason.
Organ system
Microscope
Animal
Plant
Nucleus
Mitochondria
Cell membranes
Cell wall
Golgi bodies
Vacuoles
Endoplasmic reticulum
Ribosomes
Lysosomes
Chloroplast
Answer:
The correct answer is: RNA dependent RNA polymerase, also called, RNA replicase.
Explanation:
- RNA dependent RNA polymerase or RNA replicase is an enzyme that is capable of replicating RNA. This means the enzyme is capable of utilising RNA (Ribonucleic Acid) as a template strand to synthesise a new RNA molecule as the daughter strand.
- This enzyme is encoded only in the genome of those viruses that use RNA as their genetic material and such viruses are called RNA viruses.
- This enzyme is absent in the host cells that the virus infect.
- These viruses hijack the host cell machinery to translate their RNA genome and synthesise the RNA replicase protein, which further helps in replicating their RNA genome.