The statement '<span>Hormones are chemical secreted and regulate by the endocrine system.' is indeed TRUE. The endocrine system is responsible for secreting bodily juices that would excite or inhibit the sympathetic and/or parasympathetic systems in the body.</span>
Answer:
The most likely explanation for the high rate of sympatric speciation that apparently existed among the cichlids of Lake Victoria in the past is sexual selection.
Explanation:
Divergent sexual and natural selection on the visual system has been confirmed earlier in sympatric, morphologically comparable sister species of Lake Victoria cichlids, but this seems not to reveal the exact morphological variations within them.
Cichlid fish reasonably describe the enormous inventory of standards of speciation and reproductive isolation without geographical or ecological separation.
Most of the recent observations have not confirmed the hypothesis, implying that sexual selection may be effective for the bursting cichlid speciation in the lake. Workroom practices have shown that reproductive isolation of three morphologically comparable species of rock-dwelling cichlid fish.
There are two hormones that the adrenal medulla is responsible for secreting, and those are:
1. epinephrine, also known as adrenaline
2. norepinephrine, or noradrenaline
Amblyopia
Amblyopia is a sight disorder in
which there is reduction of visual acuity due to the inability of the eye and
the brain to work well together. Amblyopia occurs mostly to babies and young
children. Early detection and treatment of amblyopia will prevent one from
having reduced vision or severe visual disability. The most common cause of
amblyopia is refractive error in one or both eyes which can result in
refractive amblyopia and also eye misalignment.
Many reasons to be honest but the main one is because of erosion and the water levels (rising and falling)