Identify the incorrect statement about ABA growth regulator

• It increases the tolerance of plants against different stresses.

• It acts as general plant growth inhibitor and inhibitor of metabolism.

• It helps in seed maturation and dormancy.

• It promotes morphogenesis and differentiation of shoots.

Select the mismatched pair out of the following

• Rhizome - Dryopteris, Nelumbo nucifera

• Corm - Crocus sativus, Amorphophallus

• Sucker -Curcuma domestica, Zingiber officinale

• Tuber -Helianthus tuberosus, Solanum tuberosum

3.

Some salient features and phyla of organisms are given below. Select the option which shows correct combination of organism, its phylum and salient features.

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• 

• 

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An example of stretch reflex triggered by passive muscle movement is the

• tendon reflex

• ipsilateral reflex

• flexor reflex

• patellar reflex

The figure shows different human tissues labelled as A to D. Which option gives the correct identification of the label, its location and one feature.

• D-Unicellular glandular epithelium, goblet cells, secrete saliva

• B-Squamous epithelium, walls of blood vessels, form a diffusion boundary

• A-Cuboidal epithelium, ducts of glands, secretion and absorption

• C-Columnar epithelium, lining of stomach, secretion and absorption

Identify the accurate explanation of mesosome. It is

• a specialised structure of prokaryotic cell formed by extension of plasma membrane into the cytoplasm

• the middle layer of the prokaryotic cell wall

• the organelle of eukaryotic cell which helps in lipid synthesis

• the middle layer of eukaryotic cell wall.

Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms

• Perianth and no integuments

• Embryo development and apical meristem

• Absence of resin duct and leaf venation

• Presence of vessel elements and absence of archegonia

Select the option that contains all plants which produce non-endospermic seeds.

• Gram, Pea, Bean, Groundnut

• Castor, Peanut, Orchid, Wheat

• Coconut, Walnut, Wheat, Gram

• Castor, Maize, Coconut, Orchid

Select the option that correctly matches characteristic features with the group of three animals.

• Skeleton ofspicules ­- Sycon, Adamsia, Spongilla

• Excretion by flame cells - Taenia, Fasciola, Ancylostoma

• Mouth contains radula - Dentalium, Octopus, Ophiura

• Jointed appendages ­- Limulus, Apis, Laccifer

Gerdy fibres are

• ligament of neck 

• ligament of ankles

• ligament of palm

• ligament of face