explain reason:
In opuntia stem is flat, leaf-like as photosynthetic.

Give reasons for the following: In Opuntia, stem is flat, leaf-like and photosynthetic.

Explain the reason that why Monel metal is not a metal?

In Opuntia the stem is modified into a falttened green structure to perform the function of leaves. Cite some other examples of modifications of plant parts for the purpose of photosynthesis.

Explain with reason : Red phosphorus is more stable than white phosphorus.

Explain normal and special functions of stems.

These questions consist of two statement each, printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses. A. If both Assertion and Reason are true and Reason is a correct explanation of the Assertion. B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. C. If Assertion is true but Reason is false. D. If both Assertion and Reason are false. Assertion: The photosynthetic, floating protists are collectively called phytoplanktons. Reason. The free floating. holozoic protozoans are collectively termed zooplanktons.

These questions consist of two statements each,printed as Assertion and Reason.While asnwering these questions you are required to chose any one of the following four responses. If both Assertion and Reason are true and Reason in correct explanation of Assertion. If both assertion and Reason are true but reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Assertion: C_4 photosynthetic pathay is more efficient thant he C_3 pathway. Reason:Photorespiration is suppressed in C_4 plants.

Explain with reason : The negative electron gain enthalpy of oxygen is less than that of sulphur.