A large regional community primarily determined by climate is called :
1.Population
2.Community
3.Biome
4.Habitat
Posted Date:-2021-09-02 03:38:09
A series of hypothesis supported by the results of many tests is called
1.Scientific law
2.Theory
3.Data
4.Deduction
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A structure formed by groups of similar cells organized into loose sheetsor bundles performing similar functions is called as:
1.An organ
2.An organism
3.A Tissue
4.A Cell
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An unbroken series of species arranged in ancestors to descendent sequence with each later species having evolved from one that immediately preceded it is called:
1.Biome
2.Phyletic lineage
3.Community
4.Population
Posted Date:-2021-09-02 03:38:09
Astronauts may use which technique to grow fruits and vegetables
1.Tissue culture techniques
2.Cloning
3.Pasterisation
4.Hydroponic culture technique
Posted Date:-2021-09-02 03:38:09
Biological organization is
1.simple
2.advance
3.complex
4.highly complex
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Biological sciences have a set methodology and it is based on
1.Experimental inquiry
2.Esthetic preference
3.Philosophical ideas
4.Imaginations
Posted Date:-2021-09-02 03:38:09
Breeders have developed new and better varieties of food items by using which technique:
1.Pasteurization
2.Hydroponic culture technique
3.Genetic engineering
4.Biological control techniques
Posted Date:-2021-09-02 03:38:09
Communities are _____ collection of organisms
1.Static
2.Dynamic
3.May be static or dynamic
4.None of these
Posted Date:-2021-09-02 03:38:09
Conclusion of Mendels work latter became a
1.Scientific hypothesis
2.Theory
3.Scientific law
4.Productive theory
Posted Date:-2021-09-02 03:38:09
Different species of plants and animals living in the same habitat is called :
1.Population
2.Community
3.Biome
4.Habitat
Posted Date:-2021-09-02 03:38:09
Group of living organisms of the same species living in the same place at the same time is called
1.Community
2.Population
3.Ecosystem
4.Biome
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In animals coordination is achieved by means of
1.Respiratory system
2.Nervous system
3.Endocrine system
4.Both b and c
Posted Date:-2021-09-02 03:38:09
In cell fractionation various components of cells including its organelles can be isolated in different layers depending upon:
1.Their physical properties like size & weight.
2.Physical properties of the medium like its density.
3.Their electrical properties like their charges
4.Both a and b
Posted Date:-2021-09-02 03:38:09
In human body 99% of total mass is formed of
1.16 bioelements
2.12 bioelements
3.10 bioelements
4.6 bioelements
Posted Date:-2021-09-02 03:38:09
It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect:
1.Older sediment layers have equal amount of these reaioactive isotopes as that of the young ones
2.Older sediment layers have less amount of these reaioactive isotopes as that of the young ones.
3.Older sediment layers have greater amount of these radioactive isotopes as that of the young ones.
4.Older sediment layers did not have these radioactive isotopes
Posted Date:-2021-09-02 03:38:09
Magnifying power of electron microscope as compared to eye is
1.500 X
2.250000X
3.500000X
4.250X
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Movement of the material across the cell membrane which does not requiring expenditure of metabolic energy is called
1.Active transport
2.Passive transport
3.Co-transport
4.Counter transport
Posted Date:-2021-09-02 03:38:09
Out of 92 naturally occurring chemical elements how many are considered as bio-elements:
1.6
2.16
3.26
4.15
Posted Date:-2021-09-02 03:38:09
Oxygen accounts for ____ % of totals human body mass:
1.65%
2.18%
3.10%
4.3%
Posted Date:-2021-09-02 03:38:09
Percentage of proteins in cell membrane is
1.20-40%
2.40-50%
3.60-80%
4.80-100%
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Production of genetically identical copiies of organisms/cells by asexula reproduction is called
1.Mitosis
2.Replication
3.Cloning
4.Biological control
Posted Date:-2021-09-02 03:38:09
Removal or degradation of environmental pollutants or toxic materials by living organisms is called
1.Integrated disease management
2.Hydroponic culture technique
3.Pasteurization
4.Bioremediation
Posted Date:-2021-09-02 03:38:09
Resolution power of a compound microscope is
1.2.0 ?m
2.2-4 A
3.24 ?m
4.24 A
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Sythetic insulin from pork was formed by which technique:
1.Parasitology
2.Social biological techniques
3.Biotechnology
4.Both a and c
Posted Date:-2021-09-02 03:38:09
The arrangement of _____ speaks of the division of labour within cell
1.Molecule
2.Subatomic particles
3.Atoms
4.Organelles
Posted Date:-2021-09-02 03:38:09
The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called:
1.An organ
2.A molecule
3.Tissue
4.Both a and c
Posted Date:-2021-09-02 03:38:09
The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called :
1.Environmental biology
2.Social biology
3.Human biology
4.Both b and c
Posted Date:-2021-09-02 03:38:09
The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by
1.Environmental biologist
2.Paleontologist
3.Marine biologist
4.Social biologist
Posted Date:-2021-09-02 03:38:09
The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by :
1.Molecular biologists
2.Microbiologists
3.Freshwater biologists
4.Social biologist
Posted Date:-2021-09-02 03:38:09
The first layer of cell wall which is formed is:
1.Primary wall
2.Secondary wall
3.Middle lamella
4.All of these
Posted Date:-2021-09-02 03:38:09
The number of species of organisms currently known to science is
1.3500000
2.3500
3.2500000
4.25000000
Posted Date:-2021-09-02 03:38:09
The study of fossils is called:
1.Environmental Biology
2.Historical biology
3.Palaeontology
4.Social biology
Posted Date:-2021-09-02 03:38:09
Vaccine was first developed by
1.Louis Pasture
2.Edward Jenner
3.Jaber Ibn Hayan
4.Aristotle
Posted Date:-2021-09-02 03:38:09
What is the mode of transmission of Hepatitis virus?
1.Aerosol
2.Parentral (via blood)
3.Skin penetration
4.Unknown
Posted Date:-2021-09-02 03:38:09
Which character differentiates living things from non-living organisms?
1.They live in the same ecosystem.
2.They are acted upon by the same environment
3.They are highly organized and complex made of one or more cells and contain genetic material
4.Both a and b
Posted Date:-2021-09-02 03:38:09
Which disease can be controlled by vaccination?
1.Measles
2.Cancer
3.Diabetes
4.Heart attack
Posted Date:-2021-09-02 03:38:09
Which disease has been totally eradicated from the world because of effective vaccination?
1.Measles
2.Polio
3.Small pox
4.Hepatitis
Posted Date:-2021-09-02 03:38:09
Which of the following is not a viral disease?
1.Cowpox
2.Mumps
3.Tetanus
4.Small pox
Posted Date:-2021-09-02 03:38:09
Which of the following is the correct sequence in the biological method?
1.Observation?hypothesis?law?theory
2.Observation?hypothesis?deduction?testing of deduction
3.Hypothesis?observation?deduction?testing of deduction
4.law?theory?deduction?observation
Posted Date:-2021-09-02 03:38:09
Which of the following statement is incorrect about antibiotics?
1.They are used against microorganisms
2.They are always effective against bacteria
3.They are used in diseases like tuberculosis and pneumonia
4.They are derived from bacteria only
Posted Date:-2021-09-02 03:38:09
Which of the statement about cell membrane is not true?
1.It contains protein molecules embedded in lipid bilayer
2.It is a differentially permeable membrane.
3.It contains charged pores thus ions being charged particles cross cell membrance much easier than neutral particles.
4.It may get infolded to engulf solid or liquid material.
Posted Date:-2021-09-02 03:38:09
Which one is a micromolecule?
1.Polysaccharide
2.Protein
3.Hemoglobin
4.ATP
Posted Date:-2021-09-02 03:38:09
Which one is not correct for a productive theory?
1.It is predictive
2.It has explanatory power
3.It discourages suggestion of different hypotheses
4.None of these
Posted Date:-2021-09-02 03:38:09
Which statement is incorrect for cloning?
1.The nucleus of a fertillized egg is replaced by the nucleus from the cell of a fully developed individual
2.Division of a single egg into one or more separate embryos.
3.The individual is the mirror image of the parent organism
4.It involve methods of sexual reproduction
Posted Date:-2021-09-02 03:38:09
Which statement is incorrect for pasteurization?
1.It is used to preserve yogurt and milk
2.It was developed by Louis Pasteur.
3.It involves heating the substance at high temperature for just few sec.
4.It can be used to preserve vegetables and meat.
Posted Date:-2021-09-02 03:38:09
Which treatment is instituted in a cancerous patient:
1.Antibiotic therapy
2.Radiotherapy
3.Gene therapy
4.None of these
Posted Date:-2021-09-02 03:38:09
Who coined the term CELL?
1.Schwann
2.Schleiden
3.Robert Hook
4.Both a and b
Posted Date:-2021-09-02 03:38:09
Who first observed and thus hypothesized that new cells are formed from previously existing living cell?
1.Theodor Schwann and Schleiden
2.Rudolph Virchows
3.Louis Pasteur
4.Both b and c
Posted Date:-2021-09-02 03:38:09
Who opposed the idea the cell is an empty space bounded by thick wall?
1.Lorenz Oken
2.Schwann
3.Robert Brown
4.Rudolph Virchow
Posted Date:-2021-09-02 03:38:09