Question # 1

Which one of the following is a biotic component?

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Atmosphere

Water

Fungi

Soil

1. ----------- is the process in which plasma membrane starts pulling away from the cell wall;

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Incipient plasmolysis

Indirect plasmolysis

Critical Phasmolysis

None

When a single gene effects two or more traits the phenomenon is called

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Epistasis

Bombay phenotype

Gene linkage

Pleiotropic

The body of fungus is called as

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Mycelium

Hyphae

Septate hyphae

Coenocytic

The oxidative change of water in photo-chemical excitation occurs in a process

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Photo-reaction

Phosphorylation

Photo-oxidation

None

Members of family -------- are a source of camphor

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Cucurbitaceae

Labiaceae

Compositeae

Malvaceae

The botanical name of Kala Zira is

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Nigella sativa

Clematyustriloba

Ranunculus aquatalis

Delphinium ajasis

Vegetative parts of ----------- are easier to observe than reproductive parts

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Angiosperms

Gymnosperms

Bryphytes

Pteridophytes

Niche is a brad term which refers to all these statements except which one

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Role a species plays in a community

Job of an organism

Basic role of an organism in community

An organism responds to variety of environmental factors

Genera with common characteristics are grouped into a more inclusive group

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Species

Family

Genus

Sub-species

The disease in which leaves may appear twisted and finally die is

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Bronzing

Whiptail disease

Whiplash disease

None

--------------- are the plants that flower only once and then die

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Monocarpic

Dicarpic

Apocarpic

holocarpic

In ecosystem an eagle may eat blue birds may eat insects, like caterpillar which feeds on green leaves this is a example of

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Simple food chain

Food web

Succession

Community relay

In ---------- stems & roots of plants increase in diameter

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Primary growth

Secondary growth

Permanent growth

Apical growth

A sex limited trait is limited to only one sex due to

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Taxonomic differences

Ecological differences

Physiological

Anatomical difference

Mycorrhiza is an association between roots of plants growing in acid soil and certain fungi to which relation it belongs

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Symbiosis

Commensalism

Grazing

Grazers

Fungi are classified in a number of groups which is one of the following groups that does not show sexual reproduction

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Zygomycota

Ascomycota

Basidiomycota

Deuteromycota

When there is a net movement of water molecules occurs towards an imbibant, the type of diffusion is

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Potential diffusion

Active diffusion

Passive diffusion

Imbibation

Green color blindness is called

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Parotanopia

Denteranopia

Tritanopia

Non of these

Males suffering from Jacobs's syndrome have sex chromosomes

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XXX

XO

XXY

XYY

--------- lives for more than two growing seasons

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Binnials

Annuals

Perenials

Bicarpic

Fruits of labiateae is

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Pome

Pappus

Drupe

Carcerulus

-----------harmone increase tendency of plants to produce a male flower

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Auxins

Gibberllins

Ethylene

Abcissic acid

Major types of ecosystems, those that occupy board geographical regions are called

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Climax community

Biome

Planetary ecosystem

Community

It is a specimen chosen by later worked from original material studied by the author of the species

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Holotype

Syntype

Isotype

Lecto type

An ordered array composed of a series of inclusive levels

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Taxon

Systematics

Hierarchy

Monopoly

Leaves of ---------- are used for the treatment of asthma

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Datura

Lyecium

Atropa

Solanum

Fungi cause certain animal diseases. How Ringworm and athlete's foot are caused by fungi

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Imperfect fungi

Aspergillus fumigatus

Purple ergot

Soil contaminated with bird's feces

Fungi are used in food industry, which fungi is used in bakery for flavor, aroma, color to some cheese

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Yeast

Penicillium

Aspergillus

Neurospora

Second largest family of glowering plants

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Leguminoceae

Labiaceae

Cucurbitaceae

Solanaceae

Bentham and Hooker divided plants in 202 orders

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Seeded

non-seeded

Floral

non-floral

Seed of family Ranunculaceae is

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Endospermic

Endosperm oily

pericarp

Both a and b

Seed of rosaceae is

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Edosperm

Endosperm oily

Non endosperm

None

Botanists were agreed that scientific names should be in

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English

Latin

Greek

Spanish

Translator consists of two parts

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Corpusculum and a pair of arms

Gynoestigium and polonium

Androecium and gynoecium

Gynoestigium and corpusculum

What are the important features that fungi have which help them in their survival on land?

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Tolerate wide range of pH

Tolerate temperature

Tolerate high osmotic pressure

All of the above

Plants of Euphorbiaceae contain the vitamin

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A

B

C

D

An organism that is caught and eaten is called

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Predator

Prey

Ectoparasites

Endoparasites

In ------------- long flowering stalk develops

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Parthenocarpy

Elongation

Vernalizaion

Bolting

If an author cited two or more specimens as types, the remaining cited species are

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Lectotype

Syntype

Paratype

Neotype

Except ---------------- all are the members of class Lobosea

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Arcella

Ameoba proteus

polystomella

Difflugia

Which of the following is a distinct feature that occurs in all pseudocoelomate phyla?

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pseudocoelom

adhesive glands

cuticle

none of the above

Which of the following phyla are not pseudocoelomate?

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Acanthocephala

Rotifera

Polychaeta

Nematoda

All of the following mollusc characters would be found in a member of the class Bivalvia except one. Select the exception.

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Visceral mass

head-foot

mantle cavity

radula

As protozoa are small, they have --------- surface area in proportion to their volume

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less

Large

Both A and B

The annelid class whose members are mostly marine is

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Hirudinea.

Oligochaeta.

Polychaeta.

Clitellata.

In phytomastigophorean each chloroplast has a structure -------------- which stores and synthesizes polysaccharides.

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Stigma

Pyrenoid

Euglenoid

None of above

Water exits the mantle cavity of a bivalve through the ------------ and the excurrent opening

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water tube

incurrent opening

suprabranchial chamber

pericardial cavity

The scientific name of the common pork roundworm is

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Ascaris lumbricoides.

Enterobius vermicularis.

Trichinella spiralis.

Wuchereria bancrofti.

Members of which of the following mollusc classed would be characterized by a shell consisting of 8 plates?

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Aplacophora

Polyplacophora

Monoplacophora

Cephalopoda

Subkingdom protozoa consist of --------- separate phyla within the kingdom protista.

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Eight

Six

Five

Seven

------------ depict a sequence in the origion of derived characters

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Cladogram

Monogram

Phylogenetic tree

None of above

Annelids and Arthropods share all of the following characteristics except one. Select the exception.

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A ventral cord

A complete digestive tract

Metamerism

An exoskeleton

Members of the class Polyplacophora include the chitons, which are found on hard substrates in marine habitats.

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True

False

None of above

All the following are unique to the molluscs except one. Select the exception.

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mantle

shell

visceral mass

head-foot

Members of the class Monoplacophora are wormlike molluscs that lack a shell, crystalline style, and foot; they live in vertical burrows on the deep-sea floor.

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True

False

None of Above

The mantle of most mollusks

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is modified for locomotion

is used in attracting prey

secretes the shell

supports the radula

Members of which of the following mollusc classes would be characterized by a reduced head, a mantle that surrounds the entire body and a tusk-shaped shell?

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Scaphopoda

Bivalvia

Polyplacophora

Gastropoda

Intermediate host for fish tape worm is

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Pig

Copepod

Snail

Humans

A clitellum is present in the members of the class Polychaeta is

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Hirudinea.

Polychaeta.

Oligochaeta.

IIirudinea and Oligochaeta

In Schizogony ----------- divisions takes place in mature individual

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Mitotic

Meiotic

Multiple mitotic

First mitotic then meiotic

Radiolarians and heliozoans are members of

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Phylum Apicomplexa

Phylum Sarcomastigophora

Phylum Acetospora

Phylum Ciliophora

Which one is not a characteristic habitat of Archaea?

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Acidic environment

Fresh water

High salt

Ocean floor

The main propulsive structure(s) in the circulatory system of an earthworm is (are)

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Hearts

Dorsal and ventral blood vessels

Seminal vesicles

The typhlosole.

Molluscs can be characterized by:

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Trochophore larvae, and they are deuterostomes.

Planaria larvae, and they are protostomes.

Trochophore larvae and they are protostomes.

Planaria larvae, and they are deuterostomes

The excretory product in protozoa is primarily

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Urea

Ammonia

Uric acid

None of these

Triploblastic is the characteristic of phylum

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Nematoda

Nemerteans

Platyhelminths

Annelida

Ctenophorans and Anthozoans lie in

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Bilateral symmetry

Radial Symmetry

Asymmetry

Pentaradial symmetry

Which of the following is not an external feature of a rotifer?

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cilia

corona

germovitellarium

foot

The scientist who describe a system of classification that distinguished between kingdoms according to cellular organization and mode of nutrition was

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R. M. Kristensen

Carolus Linnaeus

Rebert II. Whittaker

None of above

Members of class phytomastigophoreans are

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Dioecious

Monoeious

Both A and B are correct

None of above

All of the following are characteristics of the phylum nematoda except?

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triploblastic, bilateral, vermiform

cuticles are not shed

complete digestive tract with a mouth surrounded by lips bearing sense organs

body wall has only longitudinal

The absence of a shell in the aplacophora is a primitive character in the phylum Mollusca

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True

False

None of Above

A ------------- is a mucoid mass that extends to the stomach of gastropods. It contains trapped food particles and is rotated by cilia

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Protostyle

Umbo

Crystalline style

Gastric shield

The diversity of body forms and lifestyles present in the phylum Mollusca is an excellent example of adaptive radiation

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True

False

None of Above

No free living larval forms occur in the annelid subclass(es)

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Hirudinea

IIirudinea and Oligochaeta

Polychaeta

Polychaeta and Oligochaeta

The ------------- is a site of amino acid metabolism in an earthworm and is analogous to the vertebrate liver.

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Typhlosole

Seminal vesicle

Nephridium

Chloragogen tissue

Animals of phylum cnidaria can be found in

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Aquatic environment

Marine environment

Dry and harsh environment

Both A and B are correct

Following are the chharacteristics of phylum Annelida except

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Distinct head

parapodia

Hermaphrodite

Thoracic appendages

--------------- is a developmental process that occurs in gastropods and results in a 180 degree counterclockwise twisting of the visceral mass and mantle cavity

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Gastrulation

Epiboly

Involution

Torsion