Answer:
In multicellular organisms, the mechanism most directly responsible for directing development and maintaining homeostasis is gene "regulation"
Explanation:
Even though the organs present throughout the body helps in maintaining the homeostasis, But the systems like endocrine system and nervous system plays important role in sustaining and regulating it. The gene regulation is the increase and decrease of the specific gene products. Gene regulation can also be understood as the regulating process which helps in controlling ability of the cell to the environmental changes or can say the adaptability of the cell to changing environment done by gene regulation.
Answer:
B) temporal summation
Explanation:
When two EPSPs occur at the same synapse, the process called temporal summation occurs.
Temporal summation is the process of combining the postsynaptic potentials of different neurons as they are added in sequence.
When occurring in rapid succession, the final potential becomes a cohesive sum of the postsynaptic potentials. Therefore, temporal summation can be defined as the sum that creates postsynaptic potentials at different times.
An organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide