Empty diatom cells are called___________?

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With different chemical arrangements and formation Of complex molecules, the life emerges on the level of the ?

A. Cells B. Tissues C. Organs D. Organ System...

An unbroken series of species arranged in ancestors to descendent sequence with each later species having evolved from one that immediately preceded it is called?

A. Biome B. Phyletic lineage C. Community D. Population...

Different species of plants and animals living in the same habitat is called ___________?

A. Population B. Community C. Biome D. Habitat...

Which of the following mechanism explains development of anemia in Renal failure?

A. Failure of bone marrow is accompanied with renal failure. B. Destruction of RBC results from accumulated urea in the blood. C. Chronicity of the disease is respobsible for anemia D. Failure of proper RBC synthesis, due to lack of chemical stimulation....

Golden brown colour of diatoms is due to presence of__________?

A. Mycoxanthin, mucoxanthin and myxoxanthophylls B. Alpha and beta carotenes and myxoxanthin C. Fucoxanthin, diatoxanthin, diadinoxanthin D. None of the above...