Explanation:
Cell death, also called apoptosis, is an essential part of life. As cells become old or broken, they are cleared away and destroyed. Mitochondria help decide which cells are destroyed.
<u>Answer</u>: A plate tectonics
B glacial advance
Both plate tectonics and glacial advance and extensive geological phenomena that have the power to affect rock layers in the observed manner. Through the movement of the tectonic plates, rock layers can not only be folded, but also created or destroyed.
The enormous mass of ice contained within glaciers with a thickness of 3 to 4 km, is more than enough to warp and scratch rock layers. They have also moved large amounts of rock many kilometers from their original location.
The process of DNA replication is ALWAYS started immediately to the left of the RNA because DNA polymerase is an enzyme that needs RNA primer. It is required the presence of a primase for this process.
<h3>DNA replication and primase</h3>
DNA replication is always initiated by a specific RNA polymerase referred to as primase.
Primase is an RNA polymerase that generates a short RNA oligonucleotide known as primer, which is complementary to the DNA strand.
Subsequently, DNA replication is started immediately to the left of this RNA primer where DNA polymerase adds nucleotides to the growing DNA strand.
In conclusion, the correct (and missing) statement here is 'the process of DNA replication is ALWAYS started immediately to the left of the RNA because DNA polymerase is an enzyme that needs RNA primer'.
Learn more about DNA replication here:
brainly.com/question/8185932
Answer:
<u>Skin:</u> The skin acts as a barrier against external agents that could affect such as microorganisms, changes in temperature, etc.
<u>Excretes waste:</u> The excretion process, is done mainly by lungs (release of carbon dioxide), kidneys (elimination of excess compounds such as nitrogen) and the skin (sweat regulates temperature but also regulates the concentration of salts within the body)
<u>Nails:</u> It protects the soft tissues surrounding the distal phalanx, but it also exerts pressure over on the digits which allows more precission in the movements.
<u>Kidneys:</u> Eliminate waste from the blood and regulate body fluids, by generating urine.
<u>Bladder:</u> In charge of storing the urine produced by the kidneys, for the urination process to be controlled and not so frecuent.
