Acetylcholine is the neurotransmitter important for muscle contraction as it binds to receptors on the membranes of muscles and cause the membranes to open channels for movement of calcium and sodium ions
Answer:
more energy is absorbed by reactions without an enzyme.
There are 4 stages. Evaporation, precipitation, condensation, and run-off or collection. Since it is a cycle, all water goes through, and always comes back to the first stage of evaporation. In the water cycle, no water can be created or destroyed; it’s always there.
Answer:
natural selection in population ???
Explanation:
Answer:
D) D, B, C, E, A, F
Explanation:
Homologous recombination (HR) is a DNA repair pathway that consists of the exchange between two identical (or very similar) DNA regions. The steps of HR are: 1-Strand exchange, which refers to the pairing between broken DNA regions; 2-Strand invasion in order to provide a DNA crossover (Holliday junction); 3- Branch migration, capable of extending the heteroduplex regions far away from DNA crossover, 4-Resolution, where Holliday junction is resolved by cleavage of the junctions; 5- In the last step, a DNA ligase enables the joining of DNA strands.
