Which molecule is split apart in photosystern 112
A. Glucose
B. Water
С. АТР
D. Carbon dioxide

B. Water

Explanation:

Photosystem II (PSII) splits water, in order to regain the electron lost, as the photon of light hits the chlorophyll.

I.e.

2 H 2 O → 4 H +  + O 2 + 4  electrons

In other words, two water molecules can refuel the chlorophyll 4 times.

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the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.

correct answer: understand the different control methods available

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the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.