Thyroid disease causes dry eyes. Puffiness of the lids, swelling, bulging eyeballs, double vision, and pain when moving the eyes are all symptoms of this ailment, which an eye doctor will recognize and refer you to the appropriate health care provider for diagnosis and treatment.
Report Abuse. asexual reproduction is simply cloning-an exact copy of the single parent genes, while sexual reproduction allows a mixture of alleles creating more variation. Source(s): i am a bio major and tutor.bio girl Â· 7 years ago.exual reproduction on the other hand involves the mating of two half cells of similar genetic code but not the same. The source of the two half cells are two different living things with different codes. Hence you have more variation in sexual reproduction vs asexual. Know-it-all Â· 7 years ago.
A form of reproduction that does not involve meiosis, ploidy reduction or fertilization, and the offspring is a clone of the parent organism;because of no exchange of genetic material. An organism capable of asexual reproduction is able to produce offspring in the absence of a mate. In asexual reproduction, the offspring is a clone of the parent and therefore results in low genetic variation in the species as a whole. Word origin: a- (absence or lack of) sexual + reproduction.