The plastic wrap that could have caused the browning effect is the ; Plastic wrap made of polyethylene
Ethylene is a multifunctional phytohormone that regulates growth and senescence ( softening and ripening of fruits ) in plants. Ethylene is a gaseous substance produced by fruits after they are harvested, which accelerates the softening and ripening of the fruits.
The browning of the banana will mostly likely be caused by the presence of the ethylene in the polyethylene plastic wrap.
Hence the plastic wrap that could have caused the browning effect on the banana is the polyethylene plastic wrap.
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Alleles in the F1 must be Tt to have height variety in the F2.
B is the correct answer. They can sometimes show an extinction but not always.
Hi there! The answer should be B. Chloroplasts contain chlorophyll which allows the plant to undergo photosynthesis, and this allows the plant to make its own food. Hope this helps you!
The answer is A, delta.
I know this because i had this on USATestPrep and got it correct :D
