That would carbon dioxide
Answer:
The correct answer is option B ( ligand gated channels opened by neurotransmitter molecules).
Explanation:
Input region or postsynaptic region or dendrite is the site of neuron cell which receives the impulse from the pre-synaptic neuron at the synaptic junction.
The cell membrane of the dendrite is embedded with ligand-gated channels which opens up in response to the ligand (neurotransmitters) produced by the neurotransmitter vesicle of axon or output region of neuron.
The neuromuscular junction is such a case where acetylcholine receptors present in the dendrite opens in the presence of acetylcholine.
Thus, option B ( ligand-gated channels opened by neurotransmitter molecules) is the correct option.
Answer:
Symbiotic relationship
Explanation:
The relationship between the manta ray and the sturgeon fish is a symbiotic relationship. It is also known as mutualism. It involves two organisms benefiting from each other. The two creatures gain something from each other.
The manta ray is cleansed of the dead skin cells and parasites by the sturgeon fish while Sturgeon fish gains a food source from the the manta ray.
There are many different types of non-chlorophyll<span> accessory pigments, but some of the most common are </span>carotenoids<span>, phycocyanins, and </span>phycoerythrins.Carotenoids<span> (caroten meaning 'carrot') are a group of some 600-700 different types of accessory pigments that reflect </span>red<span>, orange, and yellow wavelengths.</span>
Answer:
Viruses have to invade the body of a host organism in order to replicate their particles. Therefore, most viruses are pathogenic. The main difference between bacteria and virus is that bacteria are living cells, reproducing independently and viruses are nonliving particles, requiring a host cell for their replication.
hope this helps :)
