In Kranz anatomy, the bundle sheath cells have
Options
(a) thin walls, many intercellular spaces and no chloroplasts (b) thick walls, no intercellular spaces and large number of chloroplasts (c) thin walls, no […]
In which one of the following, the genus name, its two characters and its class/ phylum are correctly matched?
Options
(a) Ascaris-Annelida-Body segmented, Males and Females distinct (b) Salamandra-Amphibia-A tympanum represents ear, fertilization is external […]
Consider the following four statements whether they are correct or wrong? (A)The sporophyte in liverworts is more elaborate than that in mosses (B)Salvinia is heterosporous (C)The life cycle in all seed-bearing plants is diplontic (D)In […]
Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because:
Options
(a) female gametophyte is free and gets dispersed like seeds (b) female gametophyte lacks archaegonia (c) […]
Which one of the following aspects is an exclusive characteristic of living things ?
Options
(a) Isolated metabolic reactions occur in vitro (b) Increase in mass from inside only (c) Perception of events […]
Algae have cell wall made up of
Options
(a) cellulose,galactans and mannas (b) hemicellulose,pectins and proteins (c) pectins, cellulose and proteins (d) cellulise,hemicellulose and pectins
Correct Answer:
cellulose,galactans and mannas
Explanation:
Algae possess a […]
Some hyperthermophilic organisms that grow in highly acidic (pH2) habitats belong to the two groups:
Options
(a) Eubacteria and archaea (b) Cyanobacteria and diatoms (c) Protists and mosses (d) Liverworts and yeasts
Correct Answer: […]
Heartwood differs from sapwood in:
Options
(a) presence of rays and fibres (b) absence of vessels and parenchyma (c) having dead and non -conducting elements (d) being susceptible to pests and pathogens
Correct […]
Which one of the following statements about certain given animals is correct?
Options
(a) Round worms (Aschelminthes) are pseudocoelomates (b) Molluscs are acoelomates (c) Insects are pseudocoelomates (d) Flat worms (Platyhelminthes) are coelomates
Which one of the following statements about all the four of Spongilla, Leech, Dolphin and Penguin is correct?
Options
(a) Penguin is homeothermic while the remaining three are poikilothermic (b) Leech is a […]
2017-2025 Copyright Doctor Dreams Training Academy - About Us - Privacy Policy - Terms & Conditions - Contact Us - Refund Policy