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Abi Biology 2015 > Terminology > Flashcards

Flashcards in Terminology Deck (104):
1

What is an adaptation?

A characteristic that helps a living thing survive in its environment

2

What is adventitious?

Root system in most cacti

3

What is an alien species?

Species that is not indigenous to a specific area

4

What is an asteroid?

Piece of rock in space

5

What are astronomers?

People who study the bodies of space

6

What is astronomy?

Study of bodies in space

7

What is an atmosphere?

Gasses surrounding Earth

8

What is biodiversity?

Total variety of species in an area

9

What is the biosphere?

All of the different ecosystems on Earth

10

What are biotic factors?

All the plants and animals in an ecosystem, as well as their interactions

11

What is a black hole?

An infinite mass of nothingness with immensely powerful gravity-able to "suck up" everything in its way

12

What is camouflaged?

Colours and shapes help animals blend in well with the environment

13

What are carnivores?

Animals that feed on other animals that are living or dead

14

What are cells?

Smallest units of living organisms

15

What is chlorophyll?

Green pigment in plant cells that absorbs radiant energy

16

What is clear lime water?

Solution of calcium hydroxide and water

17

What is a comet?

Icy body that releases gases and dust when it gets close to the sun

18

What is conservation?

Wise management and use of natural resources that protects habitats and wildlife

19

What is a constellation?

Group,of stars with a specific name

20

What are consumers?

Organisms that rely on other organisms for their energy and food supply

21

What is a controlled variable?

Variables that are kept the same

22

What are craters?

Dents or hollows made by rocks that crash into planets or moons

23

What is dark matter?

Matter in space that does not emit light, but exerts gravitational pull

24

What are decomposers?

Organisms that break down or decompose the remains of dead plants and animals and their wastes

25

What is a dependant variable?

The variable that you will measure

26

What are digestive enzymes?

Substances made by an organism that break down food

27

What are disruptions?

Something that interferes with a process

28

What is a dwarf planet?

Body similar to a planet but that does not clear its orbital path of other bodies

29

What is ecology?

Study of interactions between living things and with their physical and chemical environment

30

What is an ecosystem?

All of the living and non-living things in an environment and the different ways in which they interact with each other

31

What is extinct?

There are no more of a species left on Earth

32

What is a food chain?

Number of steps in an ecosystem showing the transfer of energy between organisms

33

What is a food web?

Group of interconnected food chains

34

What are fossil fuels?

Energy-containing compound such as coal, oil or natural gas that was formed millions of years ago

35

What is a galaxy?

Collection of stars held together by their mutual gravity

36

What is gravity?

Object's natural force that pulls other objects towards itself

37

What is a habitat?

Place where organisms live

37

What are air spaces?

Stem has these to ensure flotation in water plants

38

What is a cuticle?

Structure on upper surface of the water lily to limit water loss

39

What are hydrophytes?

Plants with antiseptic mucus

40

What are hyphae?

Fine branching threads that form the structure of most fungi

41

What is a hypothesis?

Possible explanation or answer to the question you are investigating

42

What is an independent variable?

The factor that you will purposely change

43

What are insectivores?

Carnivores that feed on insects

44

What is interdependent?

Two or more things that rely on each other

45

What is the Kuiper Belt?

Broad region beyond Pluto containing millions of asteroids

46

What are mergers?

Action of two or more galaxies being consumed into one galaxy

47

What is magnify?

To make something appear larger than its actual size

48

What are mesophytes?

Plants found in areas of moderate temperature and rainfall.
Roses and sweet peas

49

What is a meteor?

Meteoroid when it enters Earth's atmosphere and burns up as it falls

50

What is a meteorite?

Remains of a meteoroid after it crashes onto Earth's surface

51

What is a meteoroid?

Small piece of rock in space, smaller than an asteroid

52

What are monocultures?

Single crop species planted over large areas

53

What is a micrograph?

Photograph of an object that is viewed under a microscope

54

What are nuclear reactions?

Type of reaction in which the nucleus of an atom changes its characteristics and becomes something else

55

What is multicellular?

Consisting of many cells

56

What is mimicry?

Harmless species copies another poisonous species

57

What is an orbit?

Circular path that a body in space follows as it travels around another body

58

What are omnivores?

Animals that eat plants and other animals.

59

What is pasteurisation?

Process of heating food or a liquid to kill any disease-causing micro-organisms that may be in it

60

What is the petiole?

The structure of the plant that positions the leaf

61

What is photosynthesis?

Radiant energy is converted into potential energy which is stored in food, and oxygen is released

62

What is a planet?

Rounded body travelling around a star in a clear circular path

63

What is phytos?

Plants

64

What is poaching?

Illegally removing animals or plants from the wild

65

What is a pollutant?

Chemicals or wastes that contaminate the water, air or soil

66

What is pollution?

Harm done to the environment by the release of harmful materials and substances produced by human activities

67

What is a population?

Group of individuals of the same species living in the same ecosystem at the same time

68

What are practical investigations?

Scientific experiments and tests conducted to find answers to questions

69

What is a predator?

Carnivore that hunts other animals

70

What is prey?

Animals hunted and eaten by the predator

71

What are producers?

Green plants that make their own food

72

What are protists?

Single-celled organisms that may be free living or living in colonies

73

What is reflected ray?

Light ray that is reflected by the reflective surface

74

What is refraction?

Ability of a wave to change direction when it passes from one medium to another

75

What are herbivores?

Animals that eat plants, carnivores are animals that eat other animals

75

What is the moon?

Body that revolves around a planet and that shines by reflecting the light of the sun

75

What is radiant energy?

Energy contained in electromagnetic radiation

75

What is reflected light?

Light that has changed direction, but continues to travel in the original material

76

What is respiration?

Process in cells where glucose is broken down and energy is released

78

What is a rhizome?

A stem that is below ground

79

What are root hairs?

Structures on the root that increase surface area for effective absorption of water

80

What are scavengers?

Carnivores that feed on dead animals or decaying meat

81

What is sewage?

Human and domestic waste from people's homes

82

What is the solar system?

Sun and the planets and other objects that move around the sun

83

What is a star?

Body of hot, glowing gases in space that produces its own energy

84

What is the Sun?

Medium-sized star, which is the centre of the solar system

85

What are sun flares?

Enormous explosions on the Sun's surface

86

What is the stomata?

Structure on underside of leaf that plays a role in gaseous exchange

87

What is spirally?

Arrangements of leaves of succulent plants

88

What is the stomata?

Found on the upper surface of the water lily leaf

89

What is sustainable use?

Using resources wisely so that they are not depleted

90

What is a trophic level?

Steps in a food chain or food web

91

What are sunspots?

Magnetic storms on the Sun's surface

91

What is terrestrial?

Relating to land

92

What is unicellular?

Consisting of one cell

93

What is a tap root?

Root system in the acacia tree

94

What are vaccines?

Preparation of a weakened or dead form of micro-organism that causes a diseases

96

What are vaccinations?

Use of a vaccine to prevent infection with specific diseases

97

What is a variable?

Any factor that has an effect on an investigation

98

What are variations?

Differences between individuals in a population

99

What is visible light?

Type of energy that comes from a light source and can be observed by the human eye

100

What are xerophytes?

Plants that do not require lots of water to survive

101

What is xylem?

The water conducting tissue of a leaf