Which is required for the light-dependent reactions in photosynthesis to occur? a) h2o b) atp c) nadph d) co2

H2O (A)

Explanation:

Light dependent reactions that occur in the plant needs water and light for the photosynthesis process to occur.

Light reaction:

The mechanism of photosynthesis can be divided into two phases, light reaction and carbon fixation. During the light reaction photosynthetic pigments absorb radiant energy and undergo a series of photochemical reactions and convert the trapped energy into chemical energy which is stored in the form of NADPH and ATP. These two compounds constitutes the assimilatory power. Light reaction is light dependent and it takes place in the grana of chloroplast.

The correct answer will be option-A

Explanation:

the light-dependent reaction is the phase of the photosynthesis which is involved in converting the sunlight to chemical energy.

The energy of the photons of the sunlight is captured by the chlorophyll component initiates a cascade of reactions by existing the electron which moves to the site of the electron transport. This creates a vacancy of the electrons in the photosystem which is filled by the lysis of the water molecule which supplies the electrons and stabilizes the photosystem.

Thus, option-A is the correct answer.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.