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WorksheetsJobyna SCI UA Exam Vocab
Total questions: 107
Worksheet time: 54mins
extirpation
the extinction of a species from a specific geographic area, but not worldwide
The tip of the pistil where the pollen lands.
Traits that show a range of possibilities (many possibilities, no real limit). Examples include height and hair colour.
an animal that has been bred or tamed by humans to perform various functions
artificial selection
Technique in which plants or animals with desirable traits are bred together by humans to develop plants or animals with specific traits. Also called selective breeding.
An agent that causes mutation. An example would be radiation (X rays, gamma rays, UV rays) or cigarette smoke.
an inherited characteristic behaviour that helps an organism survive in its environment (an example would be hunting at night)
the stalk of the stamen, supporting the anther.
continuous variation
Traits that show a range of possibilities (many possibilities, no real limit). Examples include height and hair colour.
A single-celled reproductive structure formed by some plants, fungi, moulds, algae and protozoa. Spores can be asexual or sexual (called zygospores when sexual).
Traits that have a limited number of possibilities (usually two). Examples include tongue rolling, attached or detached ear lobes, etc.
Tightly packed strands of DNA in a cell. A human cell (somatic cell) contains 46 chromosomes . A human sex cell (sperm or egg) contains 23 chromosomes (half as many).
zygote
The new cell formed by the process of fertilization. A human zygote contains 46 chromosomes
the stalk of the stamen, supporting the anther.
A flowering plant that produces seeds within a fruit.
A form of asexual reproduction used by hydra, sea sponges and yeast. A cell near the base of the organism produces a new group of cells (called a bud). Once fully developed, the bud detaches itself and becomes independen
mutation
A change in the DNA of an organism. An example would be cancer.
The tip of the pistil where the pollen lands.
Tightly packed strands of DNA in a cell. A human cell (somatic cell) contains 46 chromosomes . A human sex cell (sperm or egg) contains 23 chromosomes (half as many).
The new cell formed by the process of fertilization. A human zygote contains 46 chromosomes
asexual reproduction
A reproductive process that involves only one parent and produces offspring that are identical to the parent (clones).
An inherited trait that shows up in the offspring only if both parents passed on the genes for the trait (when mixed with genes for a dominant trait, a recessive trait does not show up in the offspring). Examples include
Female part of the flower.
the stalk of the stamen, supporting the anther.
spore
A single-celled reproductive structure formed by some plants, fungi, moulds, algae and protozoa. Spores can be asexual or sexual (called zygospores when sexual).
Traits that have a limited number of possibilities (usually two). Examples include tongue rolling, attached or detached ear lobes, etc.
The stalk of the pistil, joining the stigma and the ovary.
A form of asexual reproduction used with plants. The tip of a root, stem or leaf contains meristematic cells, that, when cut from a plant (called cuttings) can regrow the plant (clone).
ovary
A flower structure that produces eggs and encloses and protects ovules and seeds as they develop.
Female part of the flower.
fish farming
A tube that forms after a pollen grain has been delivered to the stigma and functions in the delivery of sperm to the ovule (fertilization).
budding
A form of asexual reproduction used by hydra, sea sponges and yeast. A cell near the base of the organism produces a new group of cells (called a bud). Once fully developed, the bud detaches itself and becomes independen
The stalk of the pistil, joining the stigma and the ovary.
A flower structure that produces eggs and encloses and protects ovules and seeds as they develop.
Process of making changes in the DNA of living organisms. Examples include using bacteria to produce insulin, using mammals to produce complex proteins (medicines) that can be collected in the milk, and adding an antifre
binary fission
A form of asexual reproduction in single-celled organisms by which one cell divides into two identical cells (used by an amoeba and bacteria).
Term used to refer to an organism that contains genes from other organisms. Willow the goat is an example of a transgenic animal.
A reproductive cell (either an egg or sperm) containing half the number of chromosomes of a somatic cell. A human gamete contains 23 chromosomes.
fish farming
Zygote
The cell formed when two gametes join. It is the first cell of a new individual
A trait for which only one allele must be present for it to be expressed
A type of asexual reproduction in which a new organism develops from an outgrowth on the parent
The step in sexual reproduction when a sperm cell fuses with an ova.
Pollen
Small grains produced by flowers which contain the male gametes
A group of members of different species, in the same area, sharing resources
Characteristics caused by the environment which are not transmitted from generation to generation
Living things of the same kind that are able to reproduce successfuly
Cross-pollination
When pollen from one flower is transferred to the stamen of a different flower
Living things of the same kind that are able to reproduce successfuly
natural disasters, predation, overspecialization, lack of resources due to overpopulation, disease
Similarities and differences in biotic and abiotic factors between different ecosystems
habitat destruction
Damage done to a habitat that results in the loss of resources that organisms need to survive, like food, water, and shelter
a species that no longer has any known living individuals in the world
Injecting semen into the uterus by artificial means
The process by which gametes are formed
Pollination
When pollen is transferred from the anther to the stigma
The chamber which houses the ova
When pollen from a flower is transferred to the stamen of the same flower
The stage of development after a zygote has divided and is a multi-cellular organism.
Stamen
The male part of a flower
The female gamete
The process by which gametes are formed
A group of members of the same species, in the same area, sharing resources
Chromosome
The packages that DNA is arranged into inside cells
Reproduction which incorporates genetic material from one parent, without the fusion of gametes
A group of members of different species, in the same area, sharing resources
A single, uninterrupted segment of DNA, which carries a coded instruction
Extinct
a species that no longer has any known living individuals in the world
Process of making changes in the DNA code of living organisms
The possible forms of genes
The variety of species and ecosystems on earth, and the ecological processes they are a part of.
DNA
Short for deoxyribonucleic acid. The molecule which stores genetic information
Small grains produced by flowers which contain the male gametes
Variation that has limited and specific forms
The pattern of inheritance where the expression of a trait is a mixture of both parents genes
The local extinction of a species from a specific area.
extirpation
extricate
in-situ conservation
ex-situ conservation
The factor that is measured or observed in an experiment.
responding variable
manipulated variable
controlled variable
hypothesis
An animal that has been selectively bred and genetically adapted to live alongside humans.
domestic animal
bioindicator species
manipulated variable
protected area
International agreements between countries to protect the environment.
global treaties
protected area
seed bank
extirpation
Any biological cells forming the body of a multicellular organism other than gametes, germ cells, gametocytes or undifferentiated stem cells
somatic cells
zoospore
ovule
clones
Conservation methods which involve protecting an endangered species outside of its natural habitat.
ex-situ conservation
in-situ conservation
extirpation
natural selection
The female reproductive organ in a seed plant
ovule
zoospore
somatic cell
clone
The factor that is intentionally changed in an experiment.
manipulated variable
controlled variable
responding variable
hypothesis
A species whose presence, condition, or abundance in a specific area is indicative of certain environmental conditions.
bioindicator species
domestic animal
protected area
seed bank
The process by which organisms better adapted to their environment tend to survive and reproduce more successfully.
natural selection
artificial selection
selective breeding
continuous variation
The male reproductive part of a flower, consisting of the anther and filament.
stamen
pistil
ovule
meristem
A facility that stores seeds to preserve genetic diversity.
seed bank
protected area
bioindicator species
global treaties
The factor that is kept the same throughout an experiment.
controlled variable
manipulated variable
responding variable
hypothesis
A geographically defined area which is designated or regulated and managed to achieve specific conservation objectives.
protected area
seed bank
global treaties
extirpation
An organism or cell, or group of organisms or cells, produced asexually from one ancestor or stock, to which they are genetically identical.
clone
zoospore
gene
somatic cell
The genetic material that carries information about an organism and is passed from parent to offspring.
DNA
Gene
Chromosome
Protein
Conservation methods which involve protecting an endangered species in its natural habitat.
in-situ conservation
ex-situ conservation
extirpation
artificial selection
A testable explanation for a phenomenon.
hypothesis
manipulated variable
controlled variable
responding variable
A type of variation where there is a range of differences in a trait (e.g., height).
continuous variation
discrete variation
artificial selection
natural selection
The scientific study of heredity and variation in living organisms.
genetics
evolution
ecology
taxonomy
A region of plant tissue, found chiefly at the growing tips of roots and shoots and in the cambium, consisting of actively dividing cells forming new tissue.
meristem
pistil
stamen
ovule
Structures within a cell that contain DNA, organized into genes.
chromosomes
genes
organelles
proteins
A type of variation where there are distinct categories for a trait (e.g., blood type).
discrete variation
continuous variation
natural selection
artificial selection
The intentional breeding of plants or animals to produce specific, desirable traits.
selective breeding
artificial selection
natural selection
discrete variation
A unit of heredity that is transferred from a parent to offspring and determines some characteristic of the offspring.
gene
chromosome
DNA
cell
The female reproductive part of a flower, consisting of the stigma, style, and ovary.
pistil
stamen
ovule
meristem
A motile asexual spore of some algae, fungi, and protozoans.
zoospore
ovule
somatic cell
clone
The structure in a plant that contains the egg cell; develops into a seed after fertilization.
ovule
pistil
stamen
meristem
A characteristic that is passed down from parents to offspring.
heritable
mutation
transgenic
zygote
A change in the DNA sequence of an organism.
mutation
genetic engineering
embryo
transgenic
The science that studies genes and heredity is known as:
genetics
aquaculture
embryology
oncology
Offspring arises from two organisms; offspring inherit genes from both parents
sexual reproduction
asexual reproduction
transgenic
zygote
A type of reproduction that involves only one parent and results in offspring that are genetically identical to the parent.
asexual reproduction
sexual reproduction
bacterial conjugation
self-pollination
An agent, such as radiation or a chemical substance, that causes genetic mutation.
mutagen
genetic engineering
embryo
transgenic
The embryonic leaf in seed-bearing plants.
cotyledon
embryo
pollen tube
zygote
The transfer of pollen from one flower to another flower on a different plant of the same species.
cross-pollination
self-pollination
sexual reproduction
bacterial conjugation
A diploid cell resulting from the fusion of two haploid gametes; a fertilized ovum.
zygote
embryo
spore
cotyledon
The pollination of a flower by pollen from the same flower or another flower on the same plant.
self-pollination
cross-pollination
bacterial conjugation
sexual reproduction
A reproductive cell capable of developing into a new individual without fusion with another reproductive cell.
spore
zygote
embryo
cotyledon
The rearing of aquatic animals or the cultivation of aquatic plants for food.
aquaculture
biotechnology
genetic engineering
mutation
A change in the DNA sequence of an organism.
mutation
transgenic
heritable
genetic engineering
The process of producing genetically identical copies of organisms.
cloning
aquaculture
self-pollination
transgenic
A type of reproduction that involves two parents and results in offspring with genetic variation.
sexual reproduction
asexual reproduction
binary fission
budding
A trait that will only appear in the offspring if both parents contribute it.
recessive trait
dominant trait
mutation
heritable
The transfer of genetic material between bacterial cells by direct contact.
bacterial conjugation
binary fission
budding
sexual reproduction
Offspring arises from a single organism, inheriting the genes of that parent only; it does not involve the fusion of gametes
asexual reproduction
sexual reproduction
transgenic
zygote
The set of behaviors or adaptations that enable organisms to reproduce successfully.
reproductive strategies
genetic engineering
biotechnology
mutation
The use of living systems and organisms to develop or make products.
biotechnology
genetic engineering
aquaculture
mutation
A method of asexual reproduction in bacteria, in which the cell divides into two equal parts.
binary fission
budding
bacterial conjugation
sexual reproduction
An unborn or unhatched offspring in the process of development.
embryo
zygote
cotyledon
pollen tube
An organism that has had its genome altered by the insertion of one or more foreign genes.
transgenic
mutation
biotechnology
heritable
The direct manipulation of an organism's genes using biotechnology.
genetic engineering
biotechnology
mutation
aquaculture
A thick-walled, dormant structure formed in certain algae and fungi during unfavorable conditions.
zygospore
spore
zygote
embryo
A hollow tube that develops from a pollen grain when deposited on the stigma of a flower and that penetrates the style and ovary to allow passage of male gametes to an ovule.
pollen tube
cotyledon
zygote
embryo
A type of asexual reproduction in which a new organism develops from an outgrowth or bud on another one.
budding
binary fission
sexual reproduction
bacterial conjugation
A trait that will appear in the offspring if one of the parents contributes it.
dominant trait
recessive trait
mutation
heritable
An agent, such as radiation or a chemical substance, that causes genetic mutation.
mutagen
transgenic
mutation
biotechnology
The capacity to pass on traits from parents to offspring.
heritable
mutation
transgenic
zygote
A species that can thrive only in a narrow range of environmental conditions or has a limited diet.
Narrow Niche
Broad Niche
Specialization
Generalist
The process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth
Evolution
Speciation
Adaptation
Variation
All the living things in an area interacting with each other and also with the non-living parts of the environment
Ecosystem
Community
Population
Biosphere
A symbiotic relationship in which one species benefits and the other is harmed.
Parasitism
Mutualism
Commensalism
Competition
A symbiotic relationship in which one species benefits and the other is neither harmed nor helped.
Commensalism
Mutualism
Parasitism
Competition
A group of interacting organisms of different species occupying a particular area
Community
Population
Species
Ecosystem
A complex network of interconnected food chains in an ecological community.
Food Web
Food Chain
Ecosystem
Community
The struggle between organisms to survive in a habitat with limited resources
Competition
Speciation
Specialization
Variation
An organism’s role in its environment, including its habitat, resources, and interactions with other species
Niche
Environment
Community
Population
The surroundings or conditions in which a person, animal, or plant lives or operates.
Environment
Ecosystem
Community
Biosphere
A symbiotic relationship in which both species benefit.
Mutualism
Commensalism
Parasitism
Competition
An organism that can thrive only in a narrow range of environmental conditions or has a limited diet.
Specialist
Generalist
Broad Niche
Narrow Niche
A linear network of links in a food web starting from producer organisms and ending at apex predator species, detritivores, or decomposer species.
Food Chain
Food Web
Ecosystem
Community
A trait that helps an organism survive and reproduce in its environment
Adaptation
Variation
Speciation
Specialization
Involving interaction between two different organisms living in close physical association.
Symbiotic
Competition
Parasitism
Commensalism
The interaction of organisms or species using a common limited resource.
Competition
Symbiotic
Mutualism
Commensalism
An activity or action that generally helps an organism to survive in its environment.
Behavioral Adaptation
Structural Adaptation
Speciation
Variation
A biological community of interacting organisms and their physical environment.
Ecosystem
Community
Population
Biosphere
An organism that can thrive in a wide variety of environmental conditions and makes use of a variety of different resources.
Generalist
Specialist
Broad Niche
Narrow Niche
The formation of new and distinct species in the course of evolution.
Speciation
Variation
Structural Adaptation
Behavioral Adaptation
All the organisms of the same group or species who live in a particular geographical area and are capable of interbreeding.
Population
Community
Species
Ecosystem
The variety of life in the world or in a particular habitat or ecosystem.
Biodiversity
Population
Community
Environment
The range of differences in traits of individuals within a population.
Variation
Speciation
Structural Adaptation
Behavioral Adaptation
An interacting group of various species in a common location.
Community
Population
Ecosystem
Biosphere
The regions of the surface, atmosphere, and hydrosphere of the earth occupied by living organisms.
Biosphere
Ecosystem
Environment
Community
A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
Species
Population
Community
Ecosystem
The evolutionary adaptation of a cell, organism, or population to a specific function or environment.
Specialization
Speciation
Variation
Adaptation
A physical feature of an organism's body having a specific function that contributes to the survival of the organism.
Structural Adaptation
Behavioral Adaptation
Speciation
Variation
A species that can thrive in a wide variety of environmental conditions and makes use of a variety of different resources.
Broad Niche
Narrow Niche
Specialization
Generalist
A measure of biodiversity which takes into account the number of species present in a community and the relative abundance of each species.
Diversity Index
Biodiversity
Speciation
Variation
