Answer:
overpopulation and it because harmful and hard to control and possibly will diminish the number of normal fishes by killing them with their dangerous life threatening spikes
B. carbon cycle
Carbon cycle is related because of the CO2 gases that creates extreme thermal conditions within the earth's temperature although there are other gases related too.
<span>The carbon cycle is important to all ecosystems as well as the food chain.</span><span>A benefit of the carbon cycle is that it is critical to the food chain. </span><span>Carbon is an important element in living tissues and in all organic matter. All living things are made of carbon.</span>
The given question is incomplete. The complete question is:
Question: When a neuron responds to a particular neurotransmitter by opening gated ion channels, the neurotransmitter is serving as which part of the signal pathway?
A) relay molecule
B) transducer
C) signal molecule
D) response molecule
Answer:
C) signal molecule
Explanation:
Signaling cells produce specific chemicals or compounds called signaling molecules. These signaling molecules arrive at their target cells and bind to the cell surface or intracellular receptors. Binding of the signaling molecules to their receptors present on the target cells is followed by signal transduction and production of desired response by the target cells.
Neurotransmitters serve as signal molecules that bind to the receptors present on the membranes of the postsynaptic neurons to bring about changes in the membrane potential. Their binding may trigger the opening of the gated ion channels resulting in a change in the membrane potential followed by generation of inhibitory or excitatory responses.
Inhibition of cell proliferation in G1 is almost always accompanied by cell differentiation.
