For his class project, mike needs to collect samples of algae. in which section of a river is mike most likely to find algae? middle section of the river , source of the river , mouth of the river, all along the river

Option D, all along the river

Explanation:

Algae’s are organisms that grow in moist areas or in areas flooded with water. These are just like plant and vegetable and mostly found in sea, river, lakes and ponds. These algae’s require sunlight and water to produce food thus they can not survive in shaded areas . However, there are some algae’s which can make food even in absence of sunlight and thus they can grow in regions that are devoid of sunlight such as red algae that are found in deep sea and ocean.

Hence, option D is correct.

Option D

Explanation:

Algae are aquatic organisms that are found in almost all water bodies i.e oceans, lakes, rivers, ponds and some where in snow also. These are phytoplanktons that float in water and usually occur in abundance in nutrient enriched water bodies.  

Therefore, any water body that is nutrient enriched  may have algae in it no matter the location of water body.  

Therefore, algae can be found all along the river.  

Hence, option D is correct

a and b

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