Any change in the environment of an organism is called___________?

Related Mcqs:

1. Chemical substances used on living tissues that inhibit the growth of micro organism are called___________?

   A. Antiseptics
   B. Disinfectants
   C. Antibiotics
   D. Vaccines

2. The unicellular organisms ingest large molecules into their cytoplasm from the external environment without previously digesting them. This process is called___________?

   A. Diffusion
   B. Osmosis
   C. Phagocytosis
   D. Plasmolysis

3. The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called________?

   A. Homeostasis
   B. Hemostasis
   C. Osmoregualtion
   D. Thermoregulation

4. Un-separated replica of chromosome is called___________?

   A. Chromatin
   B. Kinetochore
   C. Chromatid
   D. Centromere

5. Exposure to low temperature stimulates plants to flower. This is called___________?

   A. Photoperiodism
   B. Thermotropism
   C. Vernalisation
   D. Thermoregulation

6. Lungs are covered with double layered thin membranous sac called___________?

   A. Disphragm
   B. Pleura
   C. Pericardium
   D. Rib cage

7. If two ends of fractured bone are opened and kept united via screws and wires drilled in bone substance. This step in fracture repair is called___________?

   A. Open reduction.
   B. Closed Fixation.
   C. Open fixation.
   D. Immobilization

8. Transport of minerals from soil to epidermal cells of roots via carrier protein molcules along their concentration gradient is called___________?

   A. Diffusion.
   B. Facilitated diffusion.
   C. Passive transport.
   D. Active transport.

9. Empty diatom cells are called___________?

   A. Raphe
   B. Valves
   C. Frustule
   D. Girdles

10. Insects responsible for transmitting diseases are called___________?

    A. Drones
    B. Vectors
    C. Hybirds
    D. None of these

    Submitted by: Farhan Rana