What chemical does a shark keep in its blood to help regulate its osmotic pressure ...
Urea
Water
Oxygen
Carbon
Which of the following aquatic environments is most suitable for salmon reproduction ....
Seas
Rivers
Salt lakes
Oceans
Which of the following adaptations enables deep-sea fish to coexist with a lack of oxygen ...
Slowing the metabolic rate
Increasing the concentration of salts in the cells
Compact body
Strong blood vessels
Which of the following represents the means of respiration in amoeba ....
Gills
Mitochondria
Cell membrane
Contractile vacuole
Which of the following is a physiological change in ocean fish ....
Large gills
Arteries and veins
Compressed body
Increased blood pressure
What happens when a living cell with a solution concentration of 20% is placed in a solution with a concentration of 30%?
The cell shrinks as a result of the water exiting from outside the cell to inside it by osmosis
The cell expands as a result of the water exiting from inside the cell to outside it by osmosis
The cell expands as a result of the water exiting from outside the cell to inside it by osmosis
The cell shrinks as a result of the water exiting from inside the cell to outside it by osmosis
Which of the following will explode when placed for a period in distilled water ....
Euglena
Red blood cell
Amoeba
Paramecium
Which of the following is not a source of oxygen for fish to breathe ...
Photosynthesis of marine plants
Photosynthesis of phytoplankton
Decomposition of organic matter
Gas exchange between the atmosphere and water
Which of the following organs has a major role in getting rid of excess water in freshwater fish ....
Skin
Kidneys
Mouth
What is the main factor that affects the osmotic pressure of the solution inside the cell ....
Type of membrane
Concentration of dissolved materials
Temperature
What is the main behavioral adaptation of salmon during its life cycle .....
Living in rivers only
Migrating from the river to the sea and then returning
Changing skin color
Living in the ocean only
Which of the following has the highest osmotic pressure ....
Low concentration solution
Pure solvent degree Low temperature
Pure solvent with high temperature
High concentration solution
Osmotic pressure leads to the transfer of water from the solution characterized by ..
Low pressure Osmosis
Fewer water molecules
High osmotic pressure
Increased salt concentration
The ability of tilapia to rise to the surface of the water is mainly due to their possession of ....
Fins
Air bladder
The kidneys in freshwater fish differ from those in saltwater fish in ...
The type of fluid they produce
Their location in the body
The concentration of urine they produce
How they work
Which of the following properties helps unicellular organisms In getting rid of respiratory waste ....
Osmosis
Transpiration
Diffusion
Evaporation
Adaptation in salmon during their life cycle Adaptation .....
Behavioral only
Physiological and behavioral
Structural only
Physiological and structural
Which of the following correctly expresses the physiological adaptation of a living organism ....
Increasing the efficiency of the breathing process
Changing the structure of some of its organs
Disappearing some unnecessary structures
Modifying its behavior
Which of the following is considered a means by which living organisms in the aquatic environment get rid of excess water ....
Skin and gills
Contractile vacuoles and kidneys
Cellular respiration only
Kidneys only
What is meant by biological adaptation .....
Adapting the chemical properties in the environment to its physical properties
Adapting the living organism to the environmental conditions in which it lives
Occurring biological diversity in the environment to maintain its balance
Changing environmental conditions to suit the living organisms that live in it
During the osmosis experiment, the semi-permeable membrane ...
Allowing only water to pass
Allowing only dissolved materials to pass
Allowing large materials to pass
Preventing the passage of all materials