Answer:3:1
Explanation:
B. OO
C. XO
D. OX
Answer:
Grana
Explanation:
The thylakoids are arranged in tight stacks called grana (singular granum).
Answer:
A stack of thylakoids is called a grana.
Explanation:
Thylakoids are flattened, membrane-bound structures found within the chloroplasts of plant cells and some photosynthetic bacteria. They contain the pigments and other molecules necessary for the process of photosynthesis.
A grana is formed when multiple thylakoids stack on top of each other. These stacks are connected by intergranal lamellae, which are extensions of thylakoid membranes that link adjacent grana together.
The arrangement of thylakoids into grana is important for the efficiency of photosynthesis. It increases the surface area available for light absorption and provides a structured organization for the flow of electrons and energy during the light-dependent reactions of photosynthesis.
In summary, a stack of thylakoids is called a grana. This organization of thylakoids plays a vital role in the process of photosynthesis by providing an efficient structure for light absorption and electron transport.
the correct answer is d. Amount of fertilizer. The independentvariable is the variable that is deliberately changed or manipulated in an experiment to see its effect on the dependent variable.
In this experiment, the independent variable is the amount of fertilizer or compost added to the tomato plants, as it is the variable being intentionally varied to test the hypothesis. Therefore, the correct answer is d. Amount of fertilizer. The dependent variable in this experiment is plantgrowth, which is the variable being measured to determine the effect of the independent variable. The other variables mentioned, time of experiment and amount of water, are likely held constant throughout the experiment as part of the experimental design, and therefore do not serve as independent variables.
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Answer: Light intensity
Explanation:
The total amount of nutrient( organic material) which is left after respiration, in order to support the other levels of the food chain is known as the net primary productivity.
More than 90% of the producers are the pytoplanktons that performs the process of photosynthesis.
The intensity of light falling on the water surface affects the rate of primary productivity.