Diversity of Life Forms MCQs part 1

1. Taenia belongs to class

• Cestoda
• Nematoda
• Trematoda
• Turbellaria

2. Vector of filariasis

• Anopheles
• Culex
• Tse-tse fly
• Mites

3. Locomotory organ in nereis

• Parapodia
• Tentacles
• Cilia
• Flagella

4. Connecting link between Annelida and Arthropoda

• Nereis
• Limulus
• Peripatus
• Pheretima

5. Green gland is associated with

• Excretion
• Nutrition
• Defence
• Respiration

6. A mollusc with internal shell

• Nautilus
• Pila
• Sepia
• Chiton

7. Sensory cephalic tentacles in Dentalium

• Byssus thread
• Radula
• Capticula
• Osphredia

8. Larval stage of hemichordata

• Veliger
• Tornaria
• Trochophore
• Glochidium

9. Respiratory tree of sea cucumber is located at

• Mouth
• Cloaca
• Stomach
• Ambulacral groove

10. Notochord is found in the tail region of

• Chordata
• Urochordata
• Cephalochordata
• Vertebrata

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Correct answers:

Diversity of Life Forms MCQs Parts => 1..

Evolution And Behaviour MCQs part 1

1. Red Data Book is published by

• IUCN
• WHO
• UNEP
• UNESCO

2. Golden age of reptiles

• Coenozoic era
• Archaeozoic era
• Mesozoic era
• Palaeozoic era

3. Theory of panspermia is proposed by

• Aristotle
• Oparin and Haldane
• Richter and Arrhenius
• None of the above

4. Life originated first in the primitive oceans. The evidences supporting this view

• Protoplasm and body fluids of all animals contain salt
• Moist simpler and lower animals are aquatic and marine
• Fossils of earliest animals obtained from rocks of marine origin
• All the above

5. The colloidal particles of organic materials formed in the primitive oceans are called

• Coacervates
• Protoplasm
• Cytoplasm
• Nucleic acid

6. The theory of inheritance of acquired characters are proposed by

• J.B. Lamarck
• Charles Darwin
• Gregor Mendel
• Hugo De vries

7. Who proposed mutation theory

• J.B. Lamarck
• Charles Darwin
• Hugo de vries
• Mendel

8. Mammals originated during

• coenozoic era
• Paleozoic era
• Archaeozoic era
• None of the above

9. Carbon dating method was developed by

• Willard Libby
• Bolt Wood
• Simpson
• Mayer

10. The major phenomenon responsible for micro evolution and mega evolution

• Genetic drift
• Adaptative radiation
• Natural selection
• None of the above

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Correct answers:

Evolution and Behaviour MCQs Parts => 1..

Animal Physiology MCQs part 1

1. One of the following inhibits the secretion of gastric juices

• Enterogastrone
• Secretin
• C C K
• Gastrin

2. Vit. D is synthesised in presence of sunlight in

• Skin
• Bone
• Liver
• Spleen

3. Antipellagra factor is

• B1
• B2
• B5
• B12

4. The sphincter which separates oesophagus from stomach is called:

• Pyloric sphinctor
• Cardiac sphinctor
• Sphinctor of Oddi
• Anat sphincter

5. Which are enzymes of gastric gland

• Trypsin and rennin
• Pepsin and rennin
• Lipase and trypsin
• Vessopressin and lipase

6. Yeast is source of

• Vitamin A
• Vitamin D
• Vitamin C
• Riboflavin

7. Scurvy disease is produced in the deficiency of :

• Vitamin C
• Vitamin E
• Vitamin K
• Vitamin A

8. Mode of digestion in 'Hydra' is

• Intracellular
• Extracellular
• Both of these
• None of these

9. Which combination is incorrect

• Niacin-Pellagra
• Thiamin-Beriberi
• Vitamin K-Sterility
• Vitamin D-Rickets

10. Which enzyme digests plant protein

• Pepsin
• Erepsin
• Renin
• All these

Score =

Correct answers:

Animal Physiology MCQs Parts => 1..

Developmental Biology MCQs Part 1

1. The following is a class of proteins that is part of the complex that regulates the central events of the cell cycle.

• cyclins
• caspases
• tublins
• none of these

2. We assay the activity of a particular MAP kinase in two different cell types and find that activity is present in one cell but not the other. Possible reason for this differential activity includes:

• diffential MAP kinase gene transcription
• diffrential mRNA processing of the MAP kinase transcript
• diffential translation of the MAP kinase transcript
• all of these

3. Tumor suppressors include genes whose normal functions are:

• cell adhesion
• activators of apoptosis
• c3
• d3

4. If we transplant an amphibian optic cup subjacent to head ectoderm, a lens forms from the ectoderm. However of we transplant the optic cup subjacent to trunk ectoderm, no lens forms. The diffential response by the head and trunk actoderm could be due to diffential expression of

• extracellular matrix
• intiator capassees
• receptor
• actin

5. "Death receptors" are likely to activate

• paracrine signals
• ubiquitin
• cyclin dependent kinase inhibitors(CKIs)
• initiator caspases

6. The best commercial sponges are found in the warm waters of:

• Carabian sea
• Mediterranean sea
• Red sea
• none of these

7. Which one of the following structures determines the type of tooth to be formed?

• Ectoderm
• Mesoderm
• Ectomesenchyme
• Endoderm

8. Simple binary fission is found in

• Paramecium
• Sponge
• Euglena
• Amoeba

9. Paramecium and Planaria exhibit

• Simple binary fission
• Transverse binary fission
• Longitudinal binary fission
• Oblique binary fission

10. Which of the following animal show Longitudinal binary fission

• Euglena and Vorticella
• Opalina and Monocystis
• Volvox and Chlamydomonas
• Entamoeba and Trypanosoma

Score =

Correct answers:

Developmental Biology MCQs Part => 1..

ECOLOGICAL PRINCIPLES MCQs Part 4

1. Important abiotic factors in ecosystems include which of the following?
I. temperature
II. water
III. wind

• I only
• II only
• III only
• I, II, and III

2. All of the following statements about ecology are correct except:

• Ecology is the study of the interactions between biotic and abiotic aspects of the environment
• Ecology is a discipline that is independent from natural selection and evolutionary history
• Ecologists may study populations and communities of organisms
• Ecology spans increasingly comprehensive levels of organization, from individuals to ecosystems

3. Which of the following levels of organization is arranged in the correct sequence from most to least inclusive?

• ecosystem, community, population, individual
• community, ecosystem, individual, population
• individual, population, community, ecosystem
• population, ecosystem, individual, community

4. Which of the following are important biotic factors that can affect the structure and organization of biological communities?

• nutrient availability, soil pH, light intensity
• precipitation, wind, temperature
• predation, competition, disease
• A and B only

5. Landscape ecology is best described as the study of

• the array of interacting species within a community
• abiotic factors and the community of species that exist in a particular area
• the factors affecting the abundance of single species
• related arrays of ecosystems

6. Ecology as a discipline directly deals with all of the following levels of biological organization except\

• community
• population
• organismal
• cellular

7. "How does the foraging of animals on tree seeds affect the distribution and abundance of the trees?" This question

• is difficult to answer because a long-term experiment would be required
• is a valid ecological question
• is difficult to answer because a large experimental area would be required
• A, B, and C are correct

8. You are working for the Environmental Protection Agency considering the effect of a potentially toxic chemical in drinking water. There is as yet no documented scientific evidence against the chemical, but many suspect it to be a health hazard. Using the Precautionary Principle, what would be a reasonable environmental policy?

• Establish a contingency fund to handle insurance claims in the event that the chemical turns out to produce negative health effects
• Caution individuals to use their own judgment in deciding whether to drink water from a potentially contaminated area
• Set the acceptable levels conservatively low, and keep them there unless future studies show that they can be safely raised
• Set the acceptable levels at the highest levels encountered, and keep them there unless future studies demonstrate negative health effects

9. All of the following would have a direct effect on the amount of precipitation in an area except

• mountain ranges
• air circulation cells
• continental drift
• ocean currents

10. The biogeographic realms described by Darwin, Wallace, and others are associated with patterns of

• light intensity
• precipitation and temperature
• continental drift
• climate

Score =

Correct answers:

Ecology MCQ Parts => 1.. 2.. 3.. 4..

ECOLOGICAL PRINCIPLES MCQs Part 3

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Q . .









Out of correct.

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Ecology MCQ Parts => 1.. 2.. 3.. 4..