Level of Organization

(b) Level of organization
1. Which of the following organisms is one celled and free-living? (a) Volvox (b) Spirogyra (c) Rhizopus (d) Chlamydomonas
Right Choice: Option D

2. Which of the following statements is true of unicellular organisms? They possess (a) a large area to volume ratio (b) all cell organelles (c) large volume ratio to surface area (d) freely permeable membranes
Right Choice: Option A

3. Which of the following arrangement gives the correct order of all organization? (I) System (II) Tissues (III) Cells (IV) Organs (a) I,IV,II and III (b) I,II,IV and III (c) III,IV,II and I (d) III,II,IV and I
Right Choice: Option C

4. Which if the following levels of organization in living things is in the correct sequence, starting from the complex to the simplest (a) tissue – cell- organ system (b) system – organ – tissue – cell (c) cell – tissue – system – organ (d) cell – tissue – organ – system
Right Choice: Option B

5. At what level of organization is Amoeba (a) tissue (b) organ (c) cell (d) stem
Right Choice: Option C

6. The epidermis of the mammalian skin is an example of a tissue because the cells (a) prevent light from passing through them (b) have a similar structure and function (c) prevents excessive loss of water (d) are impregnated with keratin
Right Choice: Option B

7. Which of the following statements is correct about organs? (a) they are composed of specialized cells (b) they Perform a certain overall function (c) they are not found in plants (d) unicellular animals have few organs
Right Choice: Option B

EXERCISE

8. Which of the organs can be considered vestigial in human but functional in other mammals? The (a) liver (b) appendix (c) rectum (d) stomach

9. Which of these organisms has a body structure at the tissue level of organization (a) Amoeba (b) Paramecium (c) Hydra (d) Euglena

10. What structure is formed from the aggregate of similar cells? (a) organism (b) system (c) organ (d) tissue

11. The cell of an onion bulb can be differentiated from a check cell by the presence of (a) plasmalemma (b) chloroplast (c) cell wall (d) nucleus

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