Study the given classification chart and select the incorrect option regarding it.
AA type of Z bones protect the heart, lungs, stomach and intestine.
BExamples of Y bones are bones of our fingers and toes.
CX kind of bones include the thigh bone.
DSkull bones are Z kind of bones.
Identify P and Q in the given Venn diagram.
AQ is glass.
BP is wood.
CP is iron.
DBoth A and C
how glass is hard?
Select the correct statement regarding different kinds of soils.
(i) Sandy soil is dry and light and it holds a lot of air and water.
(ii) Loamy soil is a mixture of sand and clay and is good for growing plants.
(iii) Clayey soil is formed of very fine particles and hence does not hold much of water.
(iv) Gravel is widely used in concrete.
A (i) only
B (ii) and (iv)
C (ii), (iii) and (iv)
D (i) and (ii)
Consider the following statements (a - d) each with one or two blanks.
I. In our body, _(1)_ is the longest cell while _(2)_ is the smallest cell.
II. Cell membrane in animal cells is _(3)_
III. Mitochondria is absent in _(4)_
IV. _(5)_ are membraneless organelles of cell and are involved in synthesis of _(6)_
Select the correct option to fill any three or four blanks.
A1 - Neuron, 2 - PPLO , 4 - bacteria
B3 - Permeable , 5 - Ribosomes, 6 - proteins
C3 - Selectively permeable , 1 - Neuron, 2 - RBC
D3 - Impermeable , 4 - human RBCs , 6 - lipids
Which of these is true of mountain dwellers in relation to people residing at sea level?
AMountain dwellers have greater vital capacity and enlarged thoracic cavity
BMountain dwellers have reduced vital capacity and compressed thoracic cavity
CMountain dwellers inhale a smaller amount of air than people living at sea level
DMountain dwellers have a reduced concentration of red blood cells compared to people living at sea level.