Answer: C. Oil from the oil spill could enter aquatic organisms, like fish, which could make people sick.
Explanation:
Oil spill in water body can be caused by the industrial oil discharge, emission of vehicle oil in water body.
The oil may contain toxic chemicals which could be consumed by the fishes or other aquatic organisms. The fishes and other edible aquatic organisms if consumed by human beings can make people unhealthy or sick.
A neurotransmitter can have an excitatory or inhibitory effect on the postsynaptic cell, depending on <u>which of its </u><u>receptor(s</u><u>) are present on the </u><u>postsynaptic</u><u> (target) cell.</u>
<h3>How do excitatory and inhibitory neurotransmitters act?</h3>
Sometimes neurotransmitters can bind to receptors and cause an electrical signal to be transmitted through the cell (excitatory). In other cases, the neurotransmitter can prevent the signal from continuing, preventing the message from being carried (inhibitory).
With this information, we can conclude that a neurotransmitter is a signaling molecule secreted by a neuron to affect another cell across a synapse.
Learn more about neurotransmitter in brainly.com/question/9725469
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Answer:
To facilitate DNA replication
Explanation:
The chromosomes must condense as to allow for DNA to replicate within the nucleus
Answer:
a structure composed of several proteins that associate with the centromere region of a chromosome and that can bind to spindle microtubules
Explanation:
Kinetochores have vvery important role in the cell division-mitosis.
During the metaphase of mitosis, spindle fibers attach to kinetochores. Some of the microtubules bind to kinetochore (kinetochore microtubules) while other don’t: they connect with the microtubules from the opposite pole, stabilizing the spindle.
During the anaphase, kinetochore microtubules pull chromosomes toward poles, helping the sister chromatids separate from each other.
