The answer is B. Lysosome. Lysosomes break down old organelles and other unwanted materials. I hope this helps!
Answer: I think it's the third one: Letter Q points to the guard cell. Letter T points to the stomata and the response is most likely due to the humid tropical nature of the enviorment.
Answer:
the enzyme and substrate fit together like a lock and key.
Thymine has a methyl group and is better suited for the storage property of the DNA molecule as it is far more stable compared to Uracil.
RNA contain Uracil instead of thymine so as to make differentiation of RNA molecule from DNA molecules easier.
