Answer:
Option-C
Explanation:
The organisms of the Fungi form the symbiotic relationship with the plants by living in their roots. This symbiotic relationship is known as the mycorrhizal association which provide phosphorus to the plant.
The research on the correlation between the fungal species and plant diversity shows that the fungal species help increase diversity. The fungi form the hyphae structures which connect one plant with another plant and increases their communication level and distribute the phosphorus nutrients in the plants. This help increases the diversity of the plants.
Thus, Option-C is correct.
Answer:xeropthalmia
Explanation: Xeropthalmia also known as dried eyes is condition caused by deficiency of vitamin A.it affects the ability to produce tears.this is characterised by changes in the cornea that can eventually lead to corneal ulcers,scarring and blindness.
Vitamin A is a fat soluble vitamin.Retinol and retinal are types of vitamin A compounds.retinol is necessary for the formation of keratin and a healthy skin.
Vitamin A functions to provide healthy eyes,skin,and bones.
It's natural sources are liver,eggs dark green vegetables,cheese etc.
Vitamin A deficiency causes night blindness .it can also lead to changes in the conjunctiva called Bitot's spots
Well more older people would have more ancestor cause they are older and they have more generation in family members
Sister chromatids have different alleles although carry same genes on same loci. So if it doesn't happen so, like if there are same alleles on sister chromatids then there is a problem in its formation. i.e., male and female alleles haven't contributed equally ( may be an error during their segregation process ). And obviously it doesn't happen in a real cell so we must understand this point. Because normally whenever it happens there's one half from the male and one half from the female. (i.e. maternal and paternal alleles contribute equally).
I hope you get the answer!!!