Biology Practice Tests – Cells and its Environment


Hello and Welcome to Biology Practice Tests - Cells and its Environment

  1. You are to attempt 5 random objectives questions ONLY.
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  3. You can attempt as many times as possible


The main similarity between unicellular and multicellular organisms is that both _____

A. perform all life activities.      B. exist as filaments      C. are plants      D. exist as colonies


A virus can sometimes be regarded as a living organism because it ______

A. causes disease in plants and animals.
B. exists in a variety of shapes.
C. reproduces in living cells.
D. is easily visible with the aid of an electron microscope


Which of these organs can be considered vestigial in humans but functional in other mammals? The ______

A. liver      B. appendix      C. rectum      D. stomach


The epidermis of the mammalian skin is an example of a tissue because the cells ______

A. prevent light from passing through them.
B. has a similar structure and function.
C. prevents excessive loss of water.
D. are impregnated with keratin


The structure used for movement in Amoeba is ______

A. cilia.      B. pseudopodia.      C. flagella.     D. endoplasm


 



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