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WorksheetsEarth and Life Science Long Quiz
Total questions: 52
Worksheet time: 26mins
Dinosaurs are reptiles that existed for a very long time. Which era did these organisms evolve?
Cenozoic Era
Mesozoic Era
Paleozoic Era
Proterozoic Era
What are the first photosynthetic organisms that grew well on earth?
Bryophyllum
Cyanobacteria
Stromatolites
Zircon crystal
The oxygen revolution changed Earth's environment dramatically. Which of the following adaptations took advantage of the presence of free oxygen in the oceans and atmosphere?
The evolution of cellular respiration, which used oxygen to help harvest energy from organic molecules.
The evolution of chloroplasts after early protists incorporated photosynthetic cyanobacteria
The evolution of multicellular eukaryotic colonies from communities of prokaryotes.
The evolution of photosynthetic pigments that protected early algae from the corrosive effects of oxygen.
Why did it take millions of years for life to appear on Earth after the planet had formed?
It took millions of years for RNA to replace DNA.
The planet had warmed up enough to sustain life.
The planet had cooled down enough to sustain life.
Life on Earth could begin only when seedlings arrived on our planet from other worlds.
Which statement best shows the main significance of studying the past?
The past is attractive to look back.
It will give jobs for many scientists and paleontologists.
It will allow them to think what they need to study.
Understanding the past allows us to predict the future and help in creating it.
Over the past decades, there are challenges that the environment has faced. Pandemics affected the lives of various living organisms. What is the significance of knowing this history?
It will give them an income.
They will just be informed about it.
It will lead them to know the history of life.
It will give an idea on how medical world will seek for the treatment.
Genes are passed from one generation to the next generation through ______________.
Evolution
Regulation
Form and function
Reproduction
Which among the given examples describes the unifying form and structure?
Cellular basis of life
Light as source of energy
Bats have wings specialized for flying
Living things arise from pre-existing cells
Living organisms cannot live alone, they are interacting with the abiotic factors for sustainability of life. Which among the organisms is considered as abiotic?
Bacteria
Plant
Light
Man
The diversity of life arises by change leading to the present biodiversity that we see. This is what we called ______________.
Evolution
Adaptation
Inheritance
Reproduction
Which of the following unifying themes in biology explains how organisms adapt to their environment over generations?
Energy flow
Homeostasis
Evolution
Structure
All organisms alive today have descended from simple cellular creatures billions of years ago. Biologists were able to identify and preserved some of the characteristics of that earliest organisms. This is associated in what theme?
Function and structure are interdependent.
Cell theory as a description of living systems.
Emergent properties arise from the organization of life.
Unity of living systems is explained by evolutionary conservation.
The ability of living organisms to maintain stable internal conditions, despite changes in the external environment, is known as:
Metabolism
Evolution
Homeostasis
Energy flow
Which unifying theme in biology emphasizes that all living organisms are made up of cells that work together as a system?
Biological organization
Genetic inheritance
Energy flow
Systems biology
The idea that all living organisms require a continuous input of energy to carry out life processes is central to which unifying theme in biology?
Energy flow
Evolution
Adaptation
Structure
What is the term for an animal that can reproduce without the involvement of a mate, often producing offspring that are genetically identical to the parent?
Sexual reproduction
Asexual reproduction
Parthenogenesis
Hermaphroditism
A technology used in genetic engineering where DNA molecules from two different species are combined.
DNA Recombinant technology
Recombinant DNA technology
Both a and b
None of a and b
The reproductive organs of the plant are inside the:
Stem
Flower
Roots
Leaves
Light energy is converted to chemical energy through the process of
photosynthesis
Cellular respiration
Glycolysis
Fermentation
Plants produce what two products in photosynthesis?
Carbon dioxide and oxygen
glucose and carbon dioxide
Oxygen and glucose
nitrogen and glucose
Plant cells have
Mitochondria only
Chloroplasts only
Both mitochondria and chloroplasts
Neither mitochondria nor chloroplasts
Photosynthesis takes what 3 things to create energy?
Carbon dioxide, water, and energy
Carbon monoxide, water, and energy
Carbon dioxide cytoplasm
Carbon monoxide, cytoplasm
What is ATP?
An energy source for plants
an energy source for animals
a compound
What is ATP?
An energy source for plants
an energy source for animals
a compound created by the smooth endroplasmic reticulum
an energy source for both plants and animals
Which of the following statements about photosynthesis is true?
Photorespiration is more efficient at producing glucose than is photosynthesis.
The light-dependent reactions can occur only in the light, the light-independent reactions only in the dark.
The light-dependent reactions produce the energy-rich compounds that are used to run the light-independent reactions.
All of the above are true.
RNA contains which bases?
Adenine, Thymine, Guanine, Cytosine, Uracil
thymine, guanine, cytosine, uracil
adenine, thymine, guanine, cytosine
adenine, guanine, cytosine, uracil
A DNA strand with the sequence AACGTAACG is transcribed. What is the sequence of the mRNA molecule synthesized?
AACGTAACG
UUGCAUUGC
AACGUAACG
TTGCATTGC
The function of tRNA is to
provide a site for polypeptide synthesis
transport amino acids to the ribosome
travel to the ribosome to direct the assembly of polypeptides
translate DNA
Organisms that have transferred DNA from a different species are called
Genetically modified organisms
Transgenic organisms
Both a and b
None of a and b
It is a process in which animals with desired characteristics are mated to produce offspring with the desired traits.
Cloning
Hybridization
Inbreeding
Selective breeding
It is a process of creating an organism that has an exact genetic copy of another.
Artificial selection
Cloning
Gene splicing
Selective breeding
A technique in artificial selection that involves propagation of organisms with desired traits.
Artificial selection
Cloning
Gene splicing
Selective breeding
It is a process where a DNA is cut out from one organism and put into another organism.
Cloning
Gel electrophoresis
Gene splicing
Selective breeding
This refers to the DNA molecule that can replicate independently.
Bacteriophage
Enzymes
Plasmid
Vector
It is a tool that helps in carrying and integrating the desired gene.
Bacteriophage
Enzymes
Plasmid
Vector
It is produced when two different nucleotides had been fused as one.
DNA
Restricted DNA
Recombinant DNA
Vector DNA
Skin, ears, and kidneys are examples of _____________.
Organs
systems
Cells
Tissues
Which organ system helps us in breathing?
Muscular
Respiratory
Lymphatic
Endocrine
Which of the following organ system secretes hormones in blood stream?
Digestive system
Lymphatic system
Skeleton system
Endocrine system
Which of the following is NOT associated with skeleton system?
Production of blood cells
Helping in reproduction
Providing support to the body
All of these
The organ system that moves blood throughout the body is
Cardiovascular system
Reproduction system
Muscular system
None of these
Which body system would be affected by degeneration of cartilage in joints?
Muscular
Nervous
Cardiovascular
Skeletal
The remains or evidence of a living thing.
Fossils
Homologous structures
DNA
Embryological
All are the theories of natural selection EXCEPT:
The number of offspring is usually greater than the available resources necessary for survival.
Organisms desire to improve themselves and become more advance.
Every organism must struggle to survive.
Survival of the fittest.
Indicates more than two immediate descendants
Monophyletic
Paraphyletic
Polyphyletic
Polytomy
Group of organisms with a most recent common ancestor, but not other descendants of the recent ancestor
monophyletic
paraphyletic
polyphyletic
polytomy
Indicates recent common ancestor and all the descendants of the recent common ancestor
monophyletic
paraphyletic
polyphyletic
polytomy
What refers to the rate at which life forms reproduce when they have perfect conditions that would advance fruitful reproduction?
limiting factor
carrying capacity
biotic potential
environmental resistance
These factors that can restrain the expansion of a population, for example, predators, competitors, lack of food and water, diseases and reasonable living space. Which of the following refers to these factors?
biotic potential
environmental resistance
carrying capacity
limiting factor
What is the maximum number of organisms that an ecosystem can support?
biotic potential
environmental resistance
carrying capacity
limiting factor
Which of the following is an example of environmental resistance?
Predators struggle for a similar prey.
Adequate food and water supply for the people
The health condition of the organisms is stable
Suitable habitat increases the growth of producers.
Which of the following is NOT an environmental resistance?
Competitors
Diseases
Predators
Reproduction
