Answer:
You can't see the blood vessels themselves because vision depends on a process that makes it impossible to see things that are stationary with respect to the retina. Light receptors in the retina respond only to changes in light reaching them, not to a steady image.
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Chemosynthesis, I believe. Bacteria at the bottom of the ocean use this process for food.
<h3>To round to a significant figure:</h3>
- look at the first non-zero digit if rounding to one significant figure.
- look at the digit after the first non-zero digit if rounding to two significant figures.
- draw a vertical line after the place value digit that is required.
- look at the next digit.
Explanation:
The atmosphere is the gaseous envelope round the earth.
The biosphere is the part of the earth dominated and occupied by living organisms.
As with other spheres of the earth, the biosphere and atmosphere are constantly interacting too.
- Organisms breathe in air to their respiration processes.
- Weather elements are conditioned by the atmosphere.
- Decomposition of organisms release gases back into the atmosphere.
learn more:
Biogeochemical cycle brainly.com/question/4217448
#learnwithBrainly
Answer: tympanic membrane
