Flashcards in Terminology Deck (104):
What is an adaptation?
A characteristic that helps a living thing survive in its environment
What is adventitious?
Root system in most cacti
What is an alien species?
Species that is not indigenous to a specific area
What is an asteroid?
Piece of rock in space
What are astronomers?
People who study the bodies of space
What is astronomy?
Study of bodies in space
What is an atmosphere?
Gasses surrounding Earth
What is biodiversity?
Total variety of species in an area
What is the biosphere?
All of the different ecosystems on Earth
What are biotic factors?
All the plants and animals in an ecosystem, as well as their interactions
What is a black hole?
An infinite mass of nothingness with immensely powerful gravity-able to "suck up" everything in its way
What is camouflaged?
Colours and shapes help animals blend in well with the environment
What are carnivores?
Animals that feed on other animals that are living or dead
What are cells?
Smallest units of living organisms
What is chlorophyll?
Green pigment in plant cells that absorbs radiant energy
What is clear lime water?
Solution of calcium hydroxide and water
What is a comet?
Icy body that releases gases and dust when it gets close to the sun
What is conservation?
Wise management and use of natural resources that protects habitats and wildlife
What is a constellation?
Group,of stars with a specific name
What are consumers?
Organisms that rely on other organisms for their energy and food supply
What is a controlled variable?
Variables that are kept the same
What are craters?
Dents or hollows made by rocks that crash into planets or moons
What is dark matter?
Matter in space that does not emit light, but exerts gravitational pull
What are decomposers?
Organisms that break down or decompose the remains of dead plants and animals and their wastes
What is a dependant variable?
The variable that you will measure
What are digestive enzymes?
Substances made by an organism that break down food
What are disruptions?
Something that interferes with a process
What is a dwarf planet?
Body similar to a planet but that does not clear its orbital path of other bodies
What is ecology?
Study of interactions between living things and with their physical and chemical environment
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
What is extinct?
There are no more of a species left on Earth
What is a food chain?
Number of steps in an ecosystem showing the transfer of energy between organisms
What is a food web?
Group of interconnected food chains
What are fossil fuels?
Energy-containing compound such as coal, oil or natural gas that was formed millions of years ago
What is a galaxy?
Collection of stars held together by their mutual gravity
What is gravity?
Object's natural force that pulls other objects towards itself
What is a habitat?
Place where organisms live
What are air spaces?
Stem has these to ensure flotation in water plants
What is a cuticle?
Structure on upper surface of the water lily to limit water loss
What are hydrophytes?
Plants with antiseptic mucus
What are hyphae?
Fine branching threads that form the structure of most fungi
What is a hypothesis?
Possible explanation or answer to the question you are investigating
What is an independent variable?
The factor that you will purposely change
What are insectivores?
Carnivores that feed on insects
What is interdependent?
Two or more things that rely on each other
What is the Kuiper Belt?
Broad region beyond Pluto containing millions of asteroids
What are mergers?
Action of two or more galaxies being consumed into one galaxy
What is magnify?
To make something appear larger than its actual size
What are mesophytes?
Plants found in areas of moderate temperature and rainfall.
Roses and sweet peas
What is a meteor?
Meteoroid when it enters Earth's atmosphere and burns up as it falls
What is a meteorite?
Remains of a meteoroid after it crashes onto Earth's surface
What is a meteoroid?
Small piece of rock in space, smaller than an asteroid
What are monocultures?
Single crop species planted over large areas
What is a micrograph?
Photograph of an object that is viewed under a microscope
What are nuclear reactions?
Type of reaction in which the nucleus of an atom changes its characteristics and becomes something else
What is multicellular?
Consisting of many cells
What is mimicry?
Harmless species copies another poisonous species
What is an orbit?
Circular path that a body in space follows as it travels around another body
What are omnivores?
Animals that eat plants and other animals.
What is pasteurisation?
Process of heating food or a liquid to kill any disease-causing micro-organisms that may be in it
What is the petiole?
The structure of the plant that positions the leaf
What is photosynthesis?
Radiant energy is converted into potential energy which is stored in food, and oxygen is released
What is a planet?
Rounded body travelling around a star in a clear circular path
What is phytos?
What is poaching?
Illegally removing animals or plants from the wild
What is a pollutant?
Chemicals or wastes that contaminate the water, air or soil
What is pollution?
Harm done to the environment by the release of harmful materials and substances produced by human activities
What is a population?
Group of individuals of the same species living in the same ecosystem at the same time
What are practical investigations?
Scientific experiments and tests conducted to find answers to questions
What is a predator?
Carnivore that hunts other animals
What is prey?
Animals hunted and eaten by the predator
What are producers?
Green plants that make their own food
What are protists?
Single-celled organisms that may be free living or living in colonies
What is reflected ray?
Light ray that is reflected by the reflective surface
What is refraction?
Ability of a wave to change direction when it passes from one medium to another
What are herbivores?
Animals that eat plants, carnivores are animals that eat other animals
What is the moon?
Body that revolves around a planet and that shines by reflecting the light of the sun
What is radiant energy?
Energy contained in electromagnetic radiation
What is reflected light?
Light that has changed direction, but continues to travel in the original material
What is respiration?
Process in cells where glucose is broken down and energy is released
What is a rhizome?
A stem that is below ground
What are root hairs?
Structures on the root that increase surface area for effective absorption of water
What are scavengers?
Carnivores that feed on dead animals or decaying meat
What is sewage?
Human and domestic waste from people's homes
What is the solar system?
Sun and the planets and other objects that move around the sun
What is a star?
Body of hot, glowing gases in space that produces its own energy
What is the Sun?
Medium-sized star, which is the centre of the solar system
What are sun flares?
Enormous explosions on the Sun's surface
What is the stomata?
Structure on underside of leaf that plays a role in gaseous exchange
What is spirally?
Arrangements of leaves of succulent plants
What is the stomata?
Found on the upper surface of the water lily leaf
What is sustainable use?
Using resources wisely so that they are not depleted
What is a trophic level?
Steps in a food chain or food web
What are sunspots?
Magnetic storms on the Sun's surface
What is terrestrial?
Relating to land
What is unicellular?
Consisting of one cell
What is a tap root?
Root system in the acacia tree
What are vaccines?
Preparation of a weakened or dead form of micro-organism that causes a diseases
What are vaccinations?
Use of a vaccine to prevent infection with specific diseases
What is a variable?
Any factor that has an effect on an investigation
What are variations?
Differences between individuals in a population
What is visible light?
Type of energy that comes from a light source and can be observed by the human eye
What are xerophytes?
Plants that do not require lots of water to survive