The variety of life end of topic test

Question 1

variable you change

Answer 1

independent

Question 2

variable you measure

Answer 2

dependent

Question 3

variable you keep constant to make it a fair test

Answer 3

control

Question 4

How do you test the reliability of an experiment?

Answer 4

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

Question 5

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

Answer 5

mm and mg

Question 6

In a table, what goes in the first column?

Answer 6

Independent variable

Question 7

In a table, what goes in the second column?

Answer 7

Dependent variable

Question 8

In a table, where do the units go?

Answer 8

In the column headings only

Question 9

What data would be plotted into a bar chart?

Answer 9

Categoric

Question 10

When would you draw a line graph?

Answer 10

When data is continuous

Question 11

What is an anomalous result?

Answer 11

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

Question 12

What is a habitat?

Answer 12

Place where an organism lives

Question 13

Give one example of an adaptation of animals to their surroundings

Answer 13

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

Question 14

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

Answer 14

Classification

Question 15

What are the 6 main groups of all living things?

Answer 15

Plants, animals, fungi, protoctists, bacteria, viruses

Question 16

What are the features of all plants?

Answer 16

Multi-cellular, cellulose cell wall, photosynthesis using chloroplasts

Question 17

What are the features of all fungi?

Answer 17

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

Question 18

What are the features of protoctists?

Answer 18

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

Question 19

What are the features of bacterial cells?

Answer 19

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

Question 20

What are the features of viruses?

Answer 20

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

Question 21

What are the features of animal cells?

Answer 21

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

Question 22

What are vertebrates?

Answer 22

Animals with a backbone

Question 23

What are invertebrates?

Answer 23

Animals without a backbone

Question 24

What are the features of arthropods?

Answer 24

Jointed legs
Hard exoskeleton

Question 25

Give 3 examples of arthropods

Answer 25

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

Question 26

What are the features of molluscs?

Answer 26

Soft bodied and muscular foot e.g. snail

Question 27

What are the features of annelids?

Answer 27

Long bodies divided into rings e.g. earthworm

Question 28

What are the 5 groups of vertebrates>?

Answer 28

Fish Amphibians Reptiles Birds Mammals

Question 29

Give 3 features of mammals

Answer 29

Warm-blooded Young develop inside mother Hair

Question 30

Give 2 features of birds

Answer 30

Feathers Lay eggs Warm blooded

Question 31

Give 2 features of fish

Answer 31

Scales Lay eggs Cold-blooded

Question 32

Give 2 features of reptiles

Answer 32

Dry Scales Lay eggs Cold-blooded

Question 33

Give 2 features of amphibians

Answer 33

Smooth moist skin Lay eggs Cold-blooded

Question 34

Name 3 groups of invertebrates

Answer 34

Arthropods Molluscs Annelids