If the green leaves are placed under red light, their color will become________?
If the green leaves are placed under red light, their color will become________?
A. Green
B. Black
C. Red
D. Blue
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Barnacles growing on the back of whale is an example for ________________?
Barnacles growing on the back of whale is an example for ________________?
A. mutualism
B. parasitism
C. amensalism
D. commensalismPeople with what blood type can give blood to anyone and are thus called universal donors?
People with what blood type can give blood to anyone and are thus called universal donors?A. O-
B. O
C. AB+
D. AB-People with type O- blood are called universal donors because their donated red blood cells have no A, B or Rh antigens and can therefore be safely given to people of any blood group.
Which of the following is a tissue?
Which of the following is a tissue?A. Blood
B. Lungs
C. Kidney
D. pancreasWhich of the following protects the body against infectious disease and foreign invaders?
Which of the following protects the body against infectious disease and foreign invaders?A. Leukocytes
B. Red blood cells
C. Endoplasmic reticulum (ER)
D. Golgi apparatusWhite blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body aga
The main cause of air pollution is __________?
The main cause of air pollution is __________?A. Burning Of Fuels
B. Forests
C. Fertilizers
D. None of theseWater is heated in a kettlE. The inside water is heated by convection. A person sitting near the fire receives heat by ________?
Water is heated in a kettlE. The inside water is heated by convection. A person sitting near the fire receives heat by ________?
A. Conduction
B. Convection
C. Radiation
D. Reflection
E. None of these