Respuesta :

Answer:

52

Explanation:

52 clams would be developing in 10 degree Celcius water. The clams that survived in the 21°C and 25°C water are used in both the biomarker and genetic analysis.

what are the characteristic features of clams ?

Clam are the member of mollusks belong to Bivalvia class of invertebrate which are characterized with flattened body and two shells on their back.

The body is covered by a protective shells which are calcareous and hard, usually oval, joined by a band known as ligament.

The shell has a thin and a protuberance on its dorsal part called umbo

The color of the shells may vary either dark gray in color, grayish, brown spot, yellowish white in color.

Clams have head but underdeveloped, gills for gaseous exchange, lack eyes and brains, their heart, mouth, rectum and circulatory system are surrounded by blood and water.

Learn more about clam, here:

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