Orchid seeds are tiny, with virtually no endosperm and with miniscule cotyledons. if such seeds are deposited in a dark, moist environment, then which of the following represents the most likely means by which fungi might assist in seed germination, given what the seeds lack?
a) by transferring some chloroplasts to the embryo in each seed
b) by providing the seeds with water and minerals
c) by providing the embryos with some of the organic nutrients the fungi have absorbed
d) by strengthening the seed coat that surrounds each seed

The correct answer will be option-C

Explanation:

Roots of Orchid trees form a symbiotic association with the Fungi which help the orchid tree seed germination.

As soon as the seed is produced and buried in the soil, the chemical produced by the seed attracts the fungal species which in result help the seed to germinate.

The fungi help the orchid seed by producing the digestive enzymes which can digest the larger compounds and breaks it into smaller elements easily absorbed by the fungi. The absorbed nutrients are supplied by the fungi to the seed embryo nourishing it and thus processing the seed to germinate.

Thus, Option-C is the correct answer.

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.