Photosynthesis produces oxygen gas by the reaction of sunlight and carbon dioxide. Every living thing living in an ecosystem requires oxygen to breathe and to survive.
Hypocalcemia or low calcium level is most usually the cause of electrolyte disturbance after a thyroid surgery.
Answer:
Organisms depends on physical and biological factors of an ecosystem.
Explanation:
Biological and physical changes cause shift in an ecosystem's populations because the population of organisms depends and greatly affected from the environmental factors such as temperature, moisture etc. These environmental factors causes change in the physical features of an ecosystem so when these changes occur in physical factors, it greatly affected the population of organisms.
The answer is A: phytoplankton provides nutrients to consumers in the ecosystem.
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Biotic and living are the same thing, abiotic would be non-living