For the following questions answer them individually
Which of the following statements is/are correct ?
a. In humans, red blood cells lack nucleus.
b. People with AB group blood can donate blood to any other group.
c. Heparin facilitates blood clotting,
Bacteria are microscopic organisms, However, there is a bacteria which can be seen with naked eye. Identify it from the following:
Read the following statements :
a. The tendency of pollutants like lead to concentrate as it moves from onetrophic level to the next is referred to as ‘Bioaccumulation’.
b. In marine ecosystem, the biomass of producers is less than that of primary consumers.
c. The flow of energy from one trophic level to next is associated with loss of energy.
Which of the above statements is/are correct ?
Match the following names of plants with the groups to which they belong:
Correct Answer is :
‘Global Warming’ is a contemporary environmental concern. The group of gases which contribute to this are :
In the following substances which is ferro-magnetic substance exhibiting unique behaviour ?