The answer is Speciation cannot occur in the absence of mutation. Speciation cannot occur in the absence of natural selection
Gregor Mendel lived in an Austrian monastery and tended the monastery garden. In 1865, through his observations of the garden pea plants that grew there, Mendel developed three basic principles that—although ignored at the time by his scientific colleagues—would later become the foundation for the new science of genetics.Every pea plant contains both male and female reproductive parts and will normally reproduce through self-pollination.
It is defined as well idk you gotta give me options man
Answer:
Cataplexy is condition in which sudden loss of muscle tone occur.
Explanation:
Cataplexy is sudden and uncontrollable muscles weakness or paralysis that comes on during the day and is often triggered by a strong emotion such as excitement or laughter. Cataplexy occur during working hours. A more severe episode may involve total body collapse. In cataplexy the voluntary muscle tone occur. This condition is mostly associated with narcolepsy which is a sleep disorder.. Symptoms of cataplexy have;
1) Dropping eyelid.
2) Jaw dropping.
3) Neck muscle weakness.
