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Bio Quiz
Bio Quiz
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1
What is the name of the process that converts atmospheric nitrogen into a usable form for plants?
Respiration
Photosynthesis
Transpiration
Nitrogen fixation
2
What is a dominant allele?
A mutated gene
An allele that is always harmful
An allele found only in males
An allele that masks a recessive allele
3
Which scientist disproved spontaneous generation in the mid-1800s?
Redi
Aristotle
Pasteur
Linnaeus
4
What is the primary function of cellular respiration?
Store sunlight
Generate ATP
Produce oxygen
Absorb carbon dioxide
5
Which of the following is NOT part of the scientific method?
Hypothesis formation
Experimentation
Guessing
Observation
6
What gas do plants absorb during photosynthesis?
Hydrogen
Oxygen
Carbon dioxide
Nitrogen
7
What is the final stable community in ecological succession?
Pioneer species
Transitional community
Climax community
Secondary species
8
What is gene flow?
Movement of alleles between populations
Mutations in DNA
Loss of genetic diversity
Random genetic changes
9
Which form of reproduction results in genetically identical offspring?
Hybridization
Asexual reproduction
Sexual reproduction
Conjugation
10
What is the first step of ecological succession?
Extinction of previous species
Colonization by pioneer species
Introduction of large animals
Climax community formation
11
What gas do animals exhale as a waste product of respiration?
Methane
Nitrogen
Carbon dioxide
Oxygen
12
What is an example of a post-zygotic reproductive barrier?
Behavioral isolation
Geographic isolation
Hybrid sterility
Temporal isolation
13
What is the carrying capacity of an ecosystem?
The total number of species present
The rate of population growth
The amount of available energy
The maximum population size the environment can support
14
What is a bottleneck effect?
The introduction of new species
A sudden increase in mutation rate
A sudden population increase
A sharp reduction in population size due to an environmental event
15
What is the genotype for a homozygous dominant trait?
Aa
aa
AB
AA
16
What is an example of a decomposer?
Wolf
Eagle
Fungi
Cow
17
Who first proposed the idea of abiogenesis?
Darwin
Aristotle
Redi
Pasteur
18
What is the purpose of a control group in an experiment?
To introduce more variables
To compare with the experimental group
To ensure a hypothesis is correct
To increase sample size
19
What is the correct order of biological organization from smallest to largest?
Tissue, Organ, Biosphere, Ecosystem
Biosphere, Community, Organ, Cell
Organism, Cell, Molecule, Atom
Atom, Molecule, Organelle, Cell
20
What percentage of energy is typically passed from one trophic level to the next?
25%
90%
10%
50%
21
Which condition is NOT required for Hardy-Weinberg equilibrium?
Natural selection
No mutations
Random mating
Large population size
22
What type of reproduction creates genetically identical offspring?
Hybridization
Asexual
Cross-breeding
Sexual
23
Which of the following interactions is considered parasitism?
A flea feeding on a dog’s blood
A lion eating a zebra
A clownfish living in an anemone
A deer grazing on grass
24
What type of selection shifts the population toward an extreme phenotype?
Random selection
Directional selection
Stabilizing selection
Disruptive selection
25
What is the study of interactions between different species in a community?
Community ecology
Genetics
Evolutionary biology
Population biology
26
What is the basic unit of life?
Atom
Cell
Molecule
Organ
27
What is genetic drift?
Evolution through natural selection
Random changes in allele frequencies
Large-scale migration
Increased mutation rates
28
What is the primary source of energy for most ecosystems?
Water
Sunlight
Soil
Wind
29
Which of the following is NOT a property of life?
Energy Processing
Spontaneity
Evolutionary Adaptation
Order
30
What is the first step in the scientific method?
Conducting an experiment
Making an observation
Forming a hypothesis
Drawing conclusions
31
What is biomagnification?
The increase in toxin concentration up the food chain
The spread of invasive species
The loss of energy in an ecosystem
The breakdown of organic material
32
What is an invasive species?
A predator in its natural habitat
A species with a low reproductive rate
A species that is at risk of extinction
A non-native species that disrupts ecosystems
33
Which type of cells lack a nucleus?
Animal cells
Eukaryotic cells
Plant cells
Prokaryotic cells
34
What do detritivores feed on?
Dead organic matter
Living plants
Fungi
Other consumers
35
What type of selection favors individuals with extreme traits?
Directional selection
Stabilizing selection
Disruptive selection
Balancing selection
36
What is the competitive exclusion principle?
Two species competing for the same resource cannot coexist indefinitely
Organisms evolve over time
Populations increase over time
Organisms always migrate
37
What is a niche?
A type of ecosystem
The role an organism plays in its environment
A group of similar organisms
The location of a species
38
What type of selection favors the average phenotype?
Stabilizing selection
Sexual selection
Directional selection
Disruptive selection
39
What is an example of a pre-zygotic reproductive barrier?
Hybrid sterility
Temporal isolation
Hybrid inviability
Hybrid breakdown
40
What is an organism’s observable traits called?
Allele
Chromosome
Phenotype
Genotype
41
What is sympatric speciation?
Speciation without geographic isolation
Speciation through hybridization
Speciation due to barriers
Speciation in fossil species
42
Which of the following is an example of mutualism?
A lion hunting a zebra
A bird nesting in a tree without harming it
Bees pollinating flowers
A tick feeding on a dog
43
What is the founder effect?
The extinction of a species
Genetic drift occurring when a few individuals colonize a new habitat
Evolution due to gene flow
A mutation affecting an entire population
44
Who is known as the father of genetics?
Gregor Mendel
James Watson
Louis Pasteur
Charles Darwin
45
In an experiment, what is the independent variable?
The factor that changes in response
The constant variable
The control group
The factor that is manipulated
46
What is allopatric speciation?
Speciation due to geographic isolation
A sudden mutation event
The merging of two species
Speciation within the same habitat
47
What is primary succession?
Reintroduction of species
Ecosystem development starting from barren land
A sudden population growth
Recovery after a forest fire
48
Who developed the system of binomial nomenclature?
Mendel
Pasteur
Darwin
Linnaeus
49
Which of the following is an example of a population?
The bacteria in your stomach
The water in a pond
A group of deer in a forest
Different types of trees in a rainforest
50
What is an example of a keystone species?
House cats
Mosquitoes
Rabbits
Wolves in Yellowstone
51
What process do plants use to convert sunlight into chemical energy?
Respiration
Fermentation
Nitrogen fixation
Photosynthesis
52
What term describes organisms that make their own food?
Consumers
Heterotrophs
Autotrophs
Decomposers
53
What is the primary driver of evolution?
Random mating
Natural selection
Mutation alone
Extinction
54
What is the correct order of taxonomy levels?
Kingdom, Phylum, Class, Order
Species, Genus, Order, Phylum
Domain, Class, Phylum, Kingdom
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
55
What does the Hardy-Weinberg principle describe?
Extinction events
Rapid evolutionary changes
Constant mutation rates
A population not evolving
56
What is the term for the study of interactions between organisms and their environment?
Ecology
Evolutionary Biology
Zoology
Botany
57
What is homeostasis?
A type of reproduction
A method of locomotion
Regulation of internal conditions
The process of photosynthesis
