SSC I Sem Science 2 Test

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In human beings, there are ............... chromosomes.

1 point

Clear selection

.............. is not the component of Air pollution.

1 point

Ash

Carbon

Tar

Lead

Clear selection

Humans are

1 point

Bilaterally symmetrical

Asymmetrical

Radially symmetrical

Tri-symmetrical

Clear selection

Cytokinesis is the division of ............... .

1 point

cell

cytoplasm

cell wall

nucleus

Clear selection

............... are connecting links between chordates and non-chordates.

1 point

Cephalochordates

Hemichordates

Urochordates

Craniata

Clear selection

Bat is included in which class ?

1 point

Amphibia

Reptilia

Aves

Mammalia

Clear selection

............... is the largest organization engaged in environmental activities.

1 point

BNHS

UNEP

WWF

Green Peace

Clear selection

Male germ cells are produced by ............... .

1 point

pollen grains

ﬁlament

ovary

style

Clear selection

Corals are ...............

1 point

Echinoderm

Arthropods.

Cnidarian.

Moluuscan.

Clear selection

The members of gynaecium are called as stamens.

1 point

True

False

Clear selection

2 points

Green plants

Herbivores

Bacteria

Consumers

Decomposers

Clear selection

22nd May is the World Environment Day.

1 point

True

False

Clear selection

Non-chordates are sub-divided in ............... phyla.

1 point

Clear selection

1 point

Binary ﬁssion

Multiple ﬁssion

Fragmentation

Budding in yeast

Clear selection

Diﬃculty in night vision is due to the deﬁciency of vitamin ............... .

1 point

Clear selection

............... is a aquatic mammal.

1 point

Scoliodon

Sea horse

Shark

Walrus

Clear selection

Mitosis results in four daughter cells.

1 point

True

False

Clear selection

Evolution means ................ .

1 point

Classiﬁcation of animals

Speciation of animals

Gradual development

Development of fossils

Clear selection

Body organization of ............... animals is referred as ‘Protoplasmic grade’ organization.

1 point

unicellular

multicellular

higher chordates

lower non-chordates

Clear selection

Which of the following is absent in RNA ?

1 point

Adenine

Guanine

Uracil

Thymine

Clear selection

Karyokinesis is the division of ...............

1 point

Cytoplasm

Nucleus

Cell wall

Pollen grains

Clear selection

Bivalve is a Molluscan.

1 point

True

False

Clear selection

Full Name *

Sperms are stored in ............... .

1 point

testis

epididymis

vas deferens

seminal vesicle

Clear selection

5 points

Environmental conservation Act

E-waste rule

Forest Conservation Act

Sound Pollution rule

Biomedical waste rule

1980

1986

1998

2000

2011

Clear selection

Duplicated chromosomes are joined at a point termed ............... .

1 point

Centrosome

Centromere

Centriole

Chromatid

Clear selection

1 point

Water cycle

Nitrogen cycle

Oxygen cycle

Carbon cycle

Clear selection

C-12 is non-radioactive.

1 point

True

False

Clear selection

The ............... sweet potato gives rise to new plant.

1 point

roots

stem

leaves

buds

Clear selection

2 points

Site of fertilization

Produce sperms

Produce eggs

Pathway through which baby comes out

Ovaries

Vagina

Clear selection

The genetic disorders like sickle cell anemia is the result of -

1 point

Mutation

Transcription

Translation

Evolution

Clear selection

Occurrence of chancre is one of the symptoms of Syphilis

1 point

True

False

Clear selection

Ovaries secrete hormone ............... .

1 point

estrogen

insulin

testosterone

thyroxine

Clear selection

Classiﬁcation proposed by Aristotle is known as ‘................’.

1 point

Kingdom Classiﬁcation

Synthetic method

General Classiﬁcation

Artiﬁcial method

Clear selection

Lamarckism is the inheritance of acquired characters.

1 point

True

False

Clear selection

Planaria reproduces by ................

1 point

binary ﬁssion

regeneration

spore formation

budding

Clear selection

Cell division occurring in somatic cells is ............... .

1 point

mitosis

meiosis

diakinesis

diplotene

Clear selection

Which of the following form a connecting links between two groups of animals ?

1 point

Platipus

Peripatus

Gillﬁsh

a and b both

Clear selection

The nuclear membrane disappears completely in ............... .

1 point

Prophase

Anaphase

Metaphase

Telophase

Clear selection

Which animal does not posses the regenerative characters?

1 point

Planaria

Wall Lizard

Sycon Sponge

Leech

Clear selection

2 points

Spirogyra

Amoeba

Mucor

Hydra

Multiple ﬁssion

Budding

Clear selection

Meiosis is called as a heterotypic division.

1 point

True

False

Clear selection

Which of the following are unicellular ?

1 point

Chlorella

Paramoecium

Peripatus

Both a and b

Clear selection

Which special cells are present in the body of sponges (Porifera)?

1 point

Collar cells.

Cnidoblasts.

Germ cells.

Ectodermal cells

Clear selection

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