The variety of life end of topic test Flashcards

1
Q

variable you change

A

independent

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2
Q

variable you measure

A

dependent

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3
Q

variable you keep constant to make it a fair test

A

control

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4
Q

How do you test the reliability of an experiment?

A

Repeat it. If the repeats give the same or similar results, it is reliable

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5
Q

What measurements are more precise - measurements in cm or mm? mg or g?

A

mm and mg

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6
Q

In a table, what goes in the first column?

A

Independent variable

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7
Q

In a table, what goes in the second column?

A

Dependent variable

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8
Q

In a table, where do the units go?

A

In the column headings only

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9
Q

What data would be plotted into a bar chart?

A

Categoric

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10
Q

When would you draw a line graph?

A

When data is continuous

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11
Q

What is an anomalous result?

A

One that is very different from other repeats. It should not be used when calculating a mean

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12
Q

What is a habitat?

A

Place where an organism lives

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13
Q

Give one example of an adaptation of animals to their surroundings

A

coat colour for camouflage, thick layer of fur/thick coat for insulation in cold climate, large ears to radiate heat in hot climate

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14
Q

What is the grouping of organisms into groups based on shared features called?

A

Classification

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15
Q

What are the 6 main groups of all living things?

A

Plants, animals, fungi, protoctists, bacteria, viruses

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16
Q

What are the features of all plants?

A

Multi-cellular, cellulose cell wall, photosynthesis using chloroplasts

17
Q

What are the features of all fungi?

A

Can be multicellular or unicellular
Cell walls of chitin
Obtain nutrition by extracellular digestion (secreting enzymes onto food and then absorbing soluble products)

18
Q

What are the features of protoctists?

A

Most are microscopic, single-celled organisms that live in pond water
Some have features of animal cells e.g. amoeba, some have chloroplasts like plant cells e.g. chlorella

19
Q

What are the features of bacterial cells?

A

Single celled organisms
Cell wall made of murein
Lack a nucleus
DNA is circular

20
Q

What are the features of viruses?

A

Smaller than bacteria
Reproduce only in living cells
No cellular structures, only genetic material and a protein coat

21
Q

What are the features of animal cells?

A

Multicellular
No cell wall
Obtain nutrition by eating
Move
Have nervous system

22
Q

What are vertebrates?

A

Animals with a backbone

23
Q

What are invertebrates?

A

Animals without a backbone

24
Q

What are the features of arthropods?

A

Jointed legs
Hard exoskeleton

25
Q

Give 3 examples of arthropods

A

Insects: bodies with 3 sections, 6 legs and wings
Crustaceans e.g. crabs
Spiders
Millipedes

26
Q

What are the features of molluscs?

A

Soft bodied and muscular foot e.g. snail

27
Q

What are the features of annelids?

A

Long bodies divided into rings e.g. earthworm

28
Q

What are the 5 groups of vertebrates>?

A

Fish
Amphibians
Reptiles
Birds
Mammals

29
Q

Give 3 features of mammals

A

Warm-blooded
Young develop inside mother
Hair

30
Q

Give 2 features of birds

A

Feathers
Lay eggs
Warm blooded

31
Q

Give 2 features of fish

A

Scales
Lay eggs
Cold-blooded

32
Q

Give 2 features of reptiles

A

Dry Scales
Lay eggs
Cold-blooded

33
Q

Give 2 features of amphibians

A

Smooth moist skin
Lay eggs
Cold-blooded

34
Q

Name 3 groups of invertebrates

A

Arthropods
Molluscs
Annelids