Every population has limiting factors
Answer - Cyanobacteria aka Algae that contributed in creating O2 for the atmosphere as a byproduct thru Photosynthetic.
Reason - Of course Algae make up mainly the whole world in waters and they do photosynthesis to give off oxygen in the atmosphere.
Answer:
The onion cell has a cell wall, unlike the human skin cell.
Explanation:
Only plant cells have cell walls.
B. Oases are sourced by springs and are regions where groundwater intersects the land surface.
Explanation:
The only true statement is that oases are sourced by springs and regions where ground water intersects the land surface.
- Oases are water bodies found in desert and arid areas.
- They are usually surrounded by fertile patches of soil.
- Oases forms when the land surface intersects the water table.
- They can also be fed by temporary surface water from nearby rivers.
Fossil remains have suggested that the region of the Sahara desert was once a lush green tropical region.
In present day, it is a desert with huge underground water reserves in aquifers.
Learn more:
Deserts brainly.com/question/6685795
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