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.
False because t<span>he </span>Cambrian Period<span> was when most of the major groups of animals first appear in the fossil record.</span>
Answer:
b. steroid
Explanation:
Steroids can cross the lipid membrane bilayer thus being able to relay the secondary message.
Wrong for 7 it is the last one
8-the last one
9- is the second one
Answer:
Yes.
Explanation:
Yes, we should try oral exams at Lehman this semester in order to fulfill the research on gene therapy done by the masters student. Test is to evaluate the performance of the student in the class, it can be taken by both the methods i.e. through written or through oral exams. Both have the same significance because both evaluate the performance of the students so we can try oral exams instead of written exams at Lehman this semester to help the masters student in his research.
