6th Grade Final-2014

Question 1

an organism, such as a fungus or bacterium, that breaks down organisms and returns nutrients to the ecosystem

Answer 1

decomposer

Question 2

an organism that uses sunlight, carbon dioxide, and water to create energy-rich food (glucose) in a process called photosynthesis

Answer 2

producer

Question 3

an organism that cannot convert sunlight into energy-rich food; its food comes from eating other organisms

Answer 3

consumer

Question 4

a diagram showing the amount of energy available at each feeding level of a food chain; producers are always on the 1st level

Answer 4

energy pyramid

Question 5

an organism that hunts, kills, and eats another organism

Answer 5

predator

Question 6

an organism that is hunted and eaten by a predator

Answer 6

prey

Question 7

the smallest unit of a living organism that can perform life functions; they vary in shape and function

Answer 7

cell

Question 8

organisms composed of a single cell, such as a bacterium or a paramecium

Answer 8

unicellular

Question 9

organisms composed of many cells, which are specialized to perform specific functions

Answer 9

multicellular

Question 10

simple cells without a true nucleus, such as a single-celled bacteria

Answer 10

prokaryotes

Question 11

complex cells that have an organized nucleus; genetic material is surrounded by a nuclear membrane

Answer 11

eukaryotes

Question 12

states that: all living things are made of cells; cells come from other cells; and cells are the basic unit of life

Answer 12

cell theory

Question 13

tiny organ-like structures inside a cell, such as the nucleus, mitochondria, and chloroplast

Answer 13

organelle

Question 14

the thin, flexible covering surrounding a cell; it allows substances to move into and out of the cell

Answer 14

cell membrane

Question 15

a clear, thick, jelly-like substance between the cell membrane and the nucleus; it contains many organelles

Answer 15

cytoplasm

Question 16

the control center of the cell; it regulates all activities, including reproduction

Answer 16

nucleus

Question 17

rod-shaped structures that supply energy to cells, often called the powerhouse of the cell

Answer 17

mitochondria

Question 18

contains the green pigment called chlorophyll, needed for photosynthesis

Answer 18

chloroplast

Question 19

the strong, stiff outside covering of pant cells; it provides protection and support to cells

Answer 19

cell wall

Question 20

a sac-like structure in the cytoplasm of the cell that stores water, food, or waste

Answer 20

vacuole

Question 21

the ability to maintain a stable environment, such as temperature, even when the outside environment changes

Answer 21

homeostasis

Question 22

the study of the any interactions between organisms and their environment

Answer 22

ecology

Question 23

the living or once-living organisms in an ecosystem and the organic matter they produce

Answer 23

biotic

Question 24

the nonliving parts of the environment such as, rocks, air, temperature, sunlight, and water

Answer 24

abiotic

Question 25

all things in a given area living, and nonliving, that interact with each other, such as a forest or drop of pond water

Answer 25

ecosystem

Question 26

a group of very similar organisms that can mate and reproduce offspring of the same type

Answer 26

species

Question 27

all the populations of different species that live in an ecosystem

Answer 27

community

Question 28

all the organisms that belong to the same species living in the same area or community

Answer 28

population

Question 29

a place where an organism lives; provides food, shelter, water, and other factors needed for survival

Answer 29

habitat

Question 30

the unique role an organism plays in an ecosystem, such as the way it survives, eats, and relates to other organisms

Answer 30

niche

Question 31

a meat-eating animal with sharp canine teeth, specialized to tear and eat flesh

Answer 31

carnivore

Question 32

an animal with teeth specialized to eat both meat and plants

Answer 32

omnivore

Question 33

a plant-eating animal with teeth specialized to cut and grind vegetation

Answer 33

herbivore

Question 34

a relationship between a parasite and a host; the parasite benefits and the host is harmed

Answer 34

parasitism

Question 35

a close relationship between 2 or more species that benefits (or helps) both species

Answer 35

symbiosis

Question 36

forces that control the growth of a population; factors include space, water, food, predators, shelter, temperature, or available sunlight

Answer 36

limiting factor

Question 37

organisms that can grow on rocks and in harsh conditions, such as lichens, that start the soil-building process

Answer 37

pioneer species

Question 38

a biological system that survives, funcitons, and remains productive over time; one that renews and continues

Answer 38

sustainable

Question 39

the part of the earth that supports life, including the top portion of the earth's crust, the atmosphere and surface water

Answer 39

biosphere

Question 40

a geographic region that has distinct plants, animal species, and a specific climate, such as a desert

Answer 40

biome

Question 41

removal of a forest or stand of trees where the land is converted to a non-forest use, such as a farm, ranch, or for urban use

Answer 41

deforestation

Question 42

resources that are constantly recycled or replaced by nature, such as water, plants, or animals

Answer 42

renewable resources

Question 43

resources that take hundreds or thousands of years to replace in nature, such as oil, natural gas or coal (fossil fuels)

Answer 43

non-renewable resources

Question 44

resources supplied by nature that are almost limitless, such as solar or wind energy

Answer 44

inexhaustible resource

Question 45

a species, family, or group that has no remaining living members, usually due to changing conditions

Answer 45

extinct

Question 46

the protection and preservation of valuable resources

Answer 46

conservation

Question 47

warming that results when solar heat is trapped in the earth's atmosphere as a result of carbon dioxide, water vapor, and other gases

Answer 47

greenhouse effect

Question 48

the process whereby organisms better adapted to their environment tent to survive and produce more offspring; favorable traits passed to offspring

Answer 48

natural selection

Question 49

a structure, behavior, or trait in an organism that helps it to survive in its environment, such as a giraffe's long neck

Answer 49

adaptation

Question 50

the number and type of organisms found within a specific geographic region; the variety in life

Answer 50

biodiversity

Question 51

a state of inactivity for certain animals; conserves energy during harsh weather conditions

Answer 51

hibernation

Question 52

the seasonal movement of a population of animals from one area to another

Answer 52

migration

Question 53

genetic characteristics that are passed from parent to offspring; they are present at birth

Answer 53

inherited traits

Question 54

behaviors learned from a parent or from an organism's environment; they require practice or experience

Answer 54

learned behaviors

Question 55

an organism that is unable to manufacture its own food; it obtains nutrients and energy by ingestion or consuming other organisms

Answer 55

heterotroph

Question 56

an organism capable of making its own food (glucose) using carbon dioxide, water, and energy from sunlight during photosynthesis

Answer 56

autotroph

Question 57

a series of paired statements (yes or no questions) that help to identify or name something

Answer 57

dichotomous key

Question 58

multi-cellular organisms in this kingdom obtain food by ingestion; most are motile (move) and reproduce sexually

Answer 58

animalia

Question 59

mulit-cellular organisms in this kingdom obtain food by absorption; they recycle dead organic matter to acquire nutrients

Answer 59

fungi

Question 60

multi-cellular organisms that have a cell wall and perform photosynthesis; organisms in this kingdom are eukaryotes

Answer 60

plantae