Write True or False:
Distinct layers of soil are called horizons while their arrangement is called soil profile.

Write notes on soil profile.

Write 'True' or 'False' Group of sporangia is called sorus.

Write True or False Cancer-causing genes are called oncogenes.

Write 'True' or 'False' The sori bearing leaves of ferns are called sporophylles.

Write True or False Study of causes of diseases is called etiology.

Choose the correct alternative. Layers of soil are called soil horizons/soil profile.

Write 'True' or 'False': yellow spot is also called macula lutea.

true or false seals have a thick layer of fat called blubber.

Write true or false: Bone forming cells are called osteoclasts while bone dissolving cells are called osteoblasts.