22 2 bryophytes

Bryophytes are a group of simple and primitive plants. They grow in moist and shady places forming a dense mass or mat on damp soil, rock, logs and other substrata. They are basically terrestrial forms, but require the presence of water for completing the life cycle. Hence, they are commo..

Red light of l = 650 nm from a distant source falls on a slit of 0.5 mm width. What is the distance between the two dark bands on each side of the central bright band of diffraction pattern observed on screen placed 1.8 m from the sli..

Question: From the given list, the nitrate which gives metal, NO 2 and O 2 on heating is _______. 1. NH 4 NO 3 2. NaNO 3 3. AgNO 3 4. Cu(NO 3 ) 2 Answer: ..

Question: km / h 2 is a unit of ________ . 1. velocity 2. speed 3. acceleration 4. distance Answer: ..

Question: Floating generators are used in the sea to harness ______. 1. tidal energy 2. wave energy 3. hydel energy 4. energy from OTEC power plant Answer: 2..

Question: Uriniferous tubules are found in 1. Kidneys 2. Testes 3. Ovary 4. Stomach Answer: ..

Question: Spiders and scorpions are 1. insects 2. millipedes 3. arachnids 4. crustaceans Answer: ..

Question: Which of these are autotrophs? 1. Plants 2. Animals 3. Both (a) and (b) 4. Neither (a) nor (b) Answer: ..

Question: Fluid part of blood after removal of corpuscles is ______________. 1. plasma 2. lymph 3. serum 4. vaccine Answer: ..

Question: Medulla oblongata is situated in ___________. 1. fore brain 2. mid brain 3. hind brain 4. partly in b and c each Answer: ..