The answer to the question stated above is letter D. Vascular and Ground. Vascular tissue comprises the xylem and phloem tissues. Xylem tissue transports water and nutrients from the roots to different parts of the plant while phloem tissue transports organic compounds (sugars and nutrients manufactured in the shoot) from the site of photosynthesis to other parts of the plant.
"Preserving and staining samples for use with light microscopes is necessary; preserving and staining samples for use with electron microscopes is optional"
that is the correct answer
It is designed to protect good bacteria in the gut.
In the grassland ecosystem, the largest number is of producer in the population.
The ecological pyramid of number is the relationship between the number population at each tropic level, it says about number of producers, and consumer. In the grassland ecosystem the vegetation is dominated by plants and grasses.
In the grassland ecosystem, the number producers or plants which is highest is followed by herbivores (mice), which is followed by secondary consumer (snake) and then tertiary carnivores (eagle) . So that, the upper level of trophic level decreases in number. Hence, in grassland ecosystem, the pyramid of number is upright.
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A Carbohydrate provides instant energy. So I would recommend any kind of meats or chicken. So steak would be the best choice. <span />