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Life Science Vocabulary Review (Grade 7)

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Life Science Vocabulary Review

The                 is the sphere inhabited by life.
  1. biosphere
  2. geosphere
  3. atmosphere
  4. hydrosphere
The complex interactions of different organisms with one another and with their environment is called                .
  1. biome
  2. community
  3. ecosystem
  4. population
Features of the environment that are alive, or were once alive are called                .
  1. abiotic
  2. biotic
  3. climate
  4. community
What is a characteristic of an organism called that increases its chances of survival in its environment?
  1. species
  2. camouflage
  3. behavior
  4. adaptation
The number of a group of the same kind of living things that live in the same place is called a                .
  1. habitat
  2. population
  3. ecosystem
  4. community
What is the name of a model that shows ALL the feeding relationships in an ecosystem?
  1. habitat
  2. food web
  3. food chain
  4. biosphere
Organisms such as green plants or algae are called                .
  1. decomposers
  2. herbivores
  3. consumers
  4. producers
An animal that eats only plants or producers is a(n)                .
  1. consumer
  2. herbivore
  3. carnivore
  4. omnivore
A type of symbiotic relationship in which one organism benefits and the other organism is harmed is called                .
  1. mutualism
  2. commensalism
  3. parasitism
  4. niche
What are the two types of ecological succession?
  1. Primary and Secondary
  2. Abiotic and Biotic
  3. Plants and Animals
  4. Erosion and Deposition
Which adaptation enables organisms to be hidden or disguised in their surroundings, possibly providing an advantage?
  1. Mimicry
  2. Camouflage
  3. Mutation
  4. Evolution
Which of these are individual ecosystems grouped together according to the climate and the predominant vegetation?
  1. ecosystems
  2. communities
  3. populations
  4. biomes
If a species dies out, it is said to be:
  1. mutated
  2. varied
  3. adapted
  4. extinct
What is the first stage in the life of a plant?
  1. fertilization
  2. pollination
  3. germination
  4. reproduction
  5. seed dispersal
The structure in seed plants that supports the other parts of plants is the
  1. root
  2. stem
  3. seed
  4. leaf
Plants that produce seeds enclosed in a fruit.
  1. angiosperms
  2. cotyledons
  3. germination
  4. reproduction
Carbon dioxide enters the leaves through the                .
  1. roots
  2. stem
  3. stomata
  4. flowers
Tropism is the process of
  1. movement of a plant toward or away from a stimulus
  2. making sugar from sunlight
  3. transporting water along a stem
  4. adaptation to a hot climate
What process produces carbon dioxide?
  1. photosynthesis
  2. replication
  3. mutation
  4. respiration
Plants use sunlight to make food in a process called
  1. respiration
  2. photosynthesis
  3. fermentation
  4. mitosis
The theory that life could spring from nonliving matter is called:
  1. spontaneous generation
  2. asexual reproduction
  3. homeostasis
  4. stimulus/response
Passing traits from parents to offspring is called
  1. genetics
  2. heredity
  3. evolution
  4. gene
What an organism looks like, or other detectable characteristics, is its                 .
  1. genetic variable
  2. genotype
  3. phenotype
  4. allele
Which of these choices describes a segment of DNA that determines a specific trait in a person, such as attached earlobes?
  1. a gene
  2. a phenotype
  3. a chromosome
  4. a characteristic
                is the term used to refer to an organism that has two different alleles for the same trait.
  1. Genotype
  2. Phenotype
  3. Homozygous
  4. Heterozygous
A sudden change in an organism's genes is called                .
  1. biodiversity
  2. mutation
  3. symbiosis
  4. taxonomy
The twisted shape of DNA is called a                .
  1. double ladder
  2. double helix
  3. nucleotide
  4. base pair
What is the name of a model that can be used to predict the outcome of a genetic cross?
  1. Punnett square
  2. Mendel square
  3. Concept map
  4. Allele triangle
What is the basic unit of structure and function of all living things?
  1. tissue
  2. organ
  3. system
  4. cell
The part of a cell that provides support for plant cells is the
  1. cytoplasm
  2. mitochondria
  3. endoplasmic reticulum
  4. cell wall
Cells make their own proteins on small structures called                .
  1. DNA
  2. Cytoplasm
  3. Ribosomes
  4. Cytoskeleton
What structure in a cell is considered the "power plant" of the cell?
  1. cell membrane
  2. mitochondria
  3. nucleus
  4. cytoplasm
The movement of substances through membranes without the use of the cell's energy is called                     .
  1. Passive Transport
  2. Cellular Respiration
  3. Osmosis
  4. Active Transport
What is a chloroplast?
  1. The regular growth and division that cells undergo
  2. A structure in a cell that controls what enters and leaves a cell
  3. A water-filled sac inside a cell that acts as a storage area
  4. A structure in the cells of plants that captures energy from sunlight and uses it to produce food
The process by which the number of chromosomes is reduced by half to form sex cells is called                .
  1. DNA replication
  2. mitosis
  3. meiosis
  4. cytokinesis
Which of the following is reproduction that requires male and female sex cells?
  1. asexual reproduction
  2. sexual reproduction
  3. mitosis
  4. heredity
A form of asexual reproduction used by some fungi, such as yeast. A small growth forms on the parent cell. Then the nucleus in the parent cell divides in two. The growth breaks off and lives as a new, separate organism.
  1. Binary Fission
  2. Conjugation
  3. Budding
The scientific study of how things are classified is called                .
  1. development.
  2. biology.
  3. taxonomy.
  4. evolution.
Invertebrates are animals that                       .
  1. do not have a backbone
  2. have a backbone
  3. eat meat
  4. eat plants
The largest group into which an organism is classified is the                .
  1. order
  2. class
  3. kingdom
  4. genus
Which of the five kingdoms does the following describe: multicellular, specialized tissues, can NOT make their own food?
  1. Monera
  2. Protista
  3. Fungi
  4. Plantae
  5. Animalia
A cold-blooded animal that lays eggs with a leathery shells and has a dry, protective covering of horny scales or plates is called a/an                .
  1. amphibian
  2. lizard
  3. reptile
  4. mammal
Some animals change a great deal as they mature. They have one kind of body when they are young and a different kind of body as an adult. What is this process called?
  1. bacteria
  2. chromosome
  3. fertilized egg
  4. metamorphosis
What is the system responsible for taking in oxygen and removing carbon dioxide from the body?
  1. Circulatory
  2. Respiratory
  3. Excretory
  4. Digestive
This system is responsible for breaking down food so that nutrients may enter the blood stream.
  1. circulatory
  2. respiratory
  3. digestive
  4. excretory
What are neurons?
  1. Cells that give, receive, and handle information
  2. Cells that help your body to grow physically larger
  3. Cells that you don't have when you are first born
  4. Cells that only exist in your lungs
When sperm cells fertilize egg cells, the product is called a:
  1. zygote
  2. hyphae
  3. gamete
  4. chromosome
Glands are organs located throughout your body that secrete or release substances called                .
  1. hormones
  2. enzymes
  3. bile
  4. uric acid
What type of symmetry does a human have?
  1. radial
  2. bilateral
  3. reflection
  4. asymmetry
The process by which an organism gets rid of waste materials is
  1. ingestion
  2. digestion
  3. respiration
  4. excretion

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