Answer:
Prokaryote.
Explanation:
Prokaryotes lack a nucleus and mitochondria. They do, however, have a cell membrane.
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A typical protein has four levels of organisation, which are primary, secondary, tertiary and quaternary structures.
A mutation that result in the replacement of the side chain of an amino acid will affect the tertiary structure of the protein. This is because the tertiary structure of a protein is primarily due to the interactions between the R groups of the amino acids that make up the protein. If the tertiary structure is affected, the function of the protein too will be negatively affected because the function of a protein depend on its tertiary structure.
I can’t see the choices, but the main part of having valves within the heart and veins it to pump blood throughout the body
Littoral cells are the areas of the coastline where sediment is constantly being moved in and out. This is usually done by waves and currents. The main reason for this is to keep the coastline from eroding away.
The movement of sediment along the coast is primarily controlled by the processes of erosion and deposition. Erosion is the process by which wave action and other agents break down and wear away rocks and other materials. This process typically occurs along the shoreline, where waves crash against the land.
Deposition is the process by which eroded materials are transported and deposited elsewhere. This can occur either offshore, where materials are carried by currents and then deposited on the seafloor, or onshore, where materials are transported by currents and then deposited along the shoreline.
The movement of sediment in and out of littoral cells is an important part of the sediment budget. The sediment budget is the balance between the amount of sediment that is being eroded and the amount that is being deposited. Littoral cells are areas of the coast where sediment is constantly being moved in and out. These areas are usually located near river mouths or along the shoreline.
Learn more about sediment at : brainly.com/question/14306913
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