Explanation:
there are a couple of environmental factors that affect the rate of transpiration. they include:
I) wind:in a windy environment there is easy movement of moisture hence it does not accumulate on the leaf surface. this helps to increase diffusion gradient between the intercellular spaces in the leaf and in the environment there4 the rate of transpiration is increased. in a calm environment moisture accumulates on the surface of a leaf there4 reducing the diffusion gradient there4 reducing the rate of transpiration
ii) atmospheric pressure :in low lands there is high atmospheric pressure than in the highlands. the more the atmospheric pressure the more the pressure exerted on the cells of the leaves there4 reducing the rate of transpiration.
iii) humidity:the more the humidity in the atmosphere the less the rate of transpiration. this is due to low diffusion gradient due to accumulation of water vapour on the surface of the leaf
iv) temperature:a rise in temp increases the water vapour holding capacity of air in the air spaces within the spongy mesophyll layer. the water vapor pressure in the intercellular spaces increases causing an increase in diffusion gradient between the intercellular spaces and the environment there4 increasing the rate of transpiration. decrease in temp decreases the water vapor holding capacity in the intercellular spaces there4 diffusion gradient is lowered there4 reducing the rate of transpiration.
Answer:
The DNA (deoxyribonucleic acid) is a double stranded molecule function as a genetic material in many organisms. It is comparatively stable molecule than RNA because of hydrogen bonds found in it and also due to lack of an oxygen atom. It's basic unit is nucleotide which comprises of a nitrogenous base, ribose sugar and a phosphate group. There are four type of nitrogenous bases found in DNA known as Purines (guanine +adenine) and pyrimidines (cytosine + thymines). As the name indicates the purines are double ringed while pyrimidines are single ringed.
This question is based on the concepts of watson and crick model of DNA. According to which base form bonds with their complementary bases like adenine form double hydrogen bond with thymine and cytosine form triple hydrogen bond with thymine.
Hydrogen bonding is function of hydrogen in which it form bond with atoms of higher electronegativity (ability to attract the bonding pair) like oxygen.
So it does not land in the zone of repugnance, a zone which prevents the spores from being consumed by the cow. (zone of repugnance is a zone of which a cow will not eat grass, this explosive dispersal of spores will allow the spores to be eaten by a cow and later pooped out to grow into a beautiful fungus)
They are both biotic factors because they affect living organisms. The abiotic factor a lion and deer needs is water because they need to stay hydrated but water is not living . Deers eat plants, plants are known as biotic factors too. And lions eat their prey which are living animals and once they are preyed upon they are still considered biotic because they were once living before getting consumed by the lion.
