Answer:
B. The Blood Travels Back to the Heart In a Vein
Answer:
The temperature is kept at room temperature and mostly preferred to be constant, so that the temperature does't be a variable factor effecting the accuracy of experiment.
Temperature is kept constant to take it as a control factor, so that experimental results are not effected by such outside factors. Such control variables are important in experiments as they minimize the influences from outside.
The right answer is A. greater leaf surface area.
In botany and agronomy, the specific leaf area (SFS) is defined as the ratio of the leaf area to the dry weight of the leaf (expressed in m².kg-1).
The specific leaf area reflects the "thickness" of the leaves and has a particular physiological significance. This parameter is correlated positively with the photosynthetic capacity of the plant.
The specific leaf area can be used to estimate the reproductive strategy of a particular plant based on, among other factors, light and moisture levels. The specific leaf area is one of the most widely accepted key features used in the study of leaves.
An atomic battery serves the purpose of being a very long lasting battery without a nuclear chain reaction. Like any other battery, it's used for electricity.
These mushrooms and other fungi will be classified as decomposers and they will obtain their nutrition by breaking down the body of organisms that have died. These organisms play a vital role in the cycling of nutrients in a food chain, since they convert the macromolecules present in dead organisms into smaller ones and release them back into the environment.
