Given below is a food chain. Identify the ‘X’ in this food chain.
Grass > Grasshopper > X > Falcon
(1) Rat: Primary CONSUMER
(2) Small bird: Secondary CONSUMER
(3) Snake: Tertiary CONSUMER
(4) Rat: Secondary CONSUMER
During secondary growth in dicot root some part of vascular cambium originates from the tissue
located _______ the phloem and a portion of pericycle tissue ______ the protoxylem.
(1) Above, below
(2) Below, above
(3) Below, below
(4) Above, above
How many plants in the list given below are the members of non vascular embryophytes :-
Spirogyra, Volvox, Ficus, Polysiphonia, Polytrichum, Sphagnum, Marchantia, Funaria, Selaginella, Equisetum.
(1) Six (2) Three (3) Four (4) Five
Mosses are gregarious because they :-
(1) Have vascular tissue
(2) Have indirect germination of spores
(3) Have direct germination of spores
(4) Have spore mother cells
A graph is given below exhibiting evolution of gametophyte of different plant groups at No. 1 to 6. Identify that number 1 representing which group of plant.
Image not present (http://www.onlinetestseries.in/data/images/common/papers/partners/32/1034/image113.png)
African, Asian and european human beings have some permanent variations in some of the traits like skin colour, hair styles, shape of nose, thickness of lips etc. Africans and europeans show extremes in these traits whereas the Asians are of intermediate types, for example, the skin colour. Africans are black, europeans are white and Asians have brown skin.
On the basis of above traits the Asians, African and europeans are :-
(1) Three ecotypes of one species
(2) Three biotypes of one species
(3) Three ecads of some species
(4) One sibling species
How many Universal (Main) element in the list given below present in protoplasm :-
Oxygen, Zinc, Calcium, Iodine, Copper, Cobalt, Sulfur, Hydrogen, Carbon, Manganese.
(1) 7 (2) 6 (3) 5 (4) 8
How many types of spindles presents in stage of cell division shown in above diagram :-
http://www.onlinetestseries.in/data/images/common/papers/partners/32/1028/image157.png