CLASSIFICATION Flashcards

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0
Q

What does MRS GREN stand for?

A
M = Movement
R = Respiration
S = Sensitivity
G = Growth
R = Reproduction
E = Excretion
N = Nutrition
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1
Q

What is the acronym for characteristics of living things?

A

MRS GREN

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2
Q

Explain RESPIRATION

A

Plants and animals use oxygen in the air to turn food into energy

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3
Q

Explain GROWTH

A

Baby animals grown into adults

Seeds grown into plants

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4
Q

Explain MOVEMENT

A

Animals move around to get from place to place

Plants turn towards the light and their roots grow down into the soil

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5
Q

Explain SENSITIVITY

A

Every living thing notices changes in the environment around them and reacts

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6
Q

Explain REPRODUCTION

A

Animals have babies

New plants grown from seeds

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7
Q

Explain EXCRETION

A

Waste products are removed from the body

Plants and animals both have to get rid of gas and water

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9
Q

Why is it useful to group things with similar characteristics?

A

To make them easier to find - this is called classification.

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10
Q

Name the five kingdoms

A
PP FAB
BACTERIA
PROTOCTISTA
FUNGI
PLANTS 
ANIMALS
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11
Q

What is a single celled organism WITHOUT a nucleus?

A

Bacteria

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12
Q

What is a single celled organism WITH a nucleus?

A

PROTOCTISTA

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13
Q

What are organisms which feed on rotting material?

A

FUNGI

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14
Q

What are organisms which make their own foods?

A

Plants

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15
Q

What are organisms that feed on other plants and animals?

A

Animals

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16
Q

How else can species be divided into? - 4 points

A

PHYLUM
CLASS
ORDER
FAMILY

P COF

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17
Q

Why are species names in Latin?

A

So the same name can be used all over the world

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18
Q

What is the first part of a species name called?

A

The genus

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19
Q

What is the second part of a species name tell you?

A

Exactly which species you are dealing with

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20
Q

What are the names of the two groups animals can be put into?

A

VERTEBRATES - those with an internal skeleton

INVERTEBRATES - those with NO internal skeleton

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21
Q

How else can animals be classified?

A

Warm blooded and cold blooded

22
Q

What is a warm blooded animal?

A

One with an internal body temperature that stay almost the same all the time

23
Q

What is a cold blooded animal?

A

One with an internal body temperature that changes with the temperature around them

24
Q

What are the key 4 features of a reptile?

A
  1. Cold blooded
  2. Have lungs
  3. Have dry, scaly skin
  4. Lay leathery-shelled eggs
25
Q

Explain NUTRITION

A

Food is used to provide energy to live

Green plants make their own food using sunlight

26
Q

Give 4 characteristics of an AMPHIBIAN

A
  1. Cold-blooded
  2. Adults have lungs - larvae have gills
  3. Moist skin
  4. Lay jelly-coated eggs in water
27
Q

Give 4 characteristics of a FISH

A
  1. Cold-blooded
  2. Have gills
  3. Wet scales
  4. Lay eggs in water
28
Q

Give 5 characteristics of BIRDS

A
  1. Warm-blooded
  2. Have lungs
  3. Feathers on body
  4. Lay eggs with hard shells
  5. Have wings
29
Q

Give 5 characteristics of MAMMALS

A
  1. Warm-blooded
  2. Have lungs
  3. Have body hair or fur
  4. Give birth to live young
  5. Produce milk
30
Q

What does the word ‘ENDOTHERM’ mean?

A

warm-blooded, ‘heat from within’

31
Q

What is the scientific word for cold-blooded?

A

ECTOTHERM.

It means ‘heat from outside’

32
Q

What can ENDOTHERMS do?

A

Control their own body temperature by making their own heat from inside their body.

33
Q

How is the body temperature of an ECTOTHERM controlled?

A

By picking up heat from the environment or losing heat to the environment

34
Q

What is the main difference between an ENDOTHERM and an ECTOTHERM?

A

The ability to maintain a steady internal body temperature

35
Q

Why are endothermic animals in cold climates on the large size?

A

If an animal has a large volume, it surface area is comparatively small so the less relative area there is to lose heat. Being big means being warmer.

36
Q

What is the secret to Emperor penguins keeping warm?

A

Huddling - which is an extension of being big

37
Q

What is a Daphnia - endothermic or ectothermic?

A

It is an invertebrate therefore ectothermic

38
Q

Where does a Daphnia keep its heart?

A

On its back

39
Q

How do marine iguanas warm up in the morning?

A

By sleeping with their back towards the sun

40
Q

How does the colour of a marine iguanas skin help warm it up?

A

It’s black skin absorbs the heat

41
Q

What do marine iguanas eat?

A

Seaweed - it has special nostrils that remove unwanted salt

42
Q

How do marine iguanas reduce the chilling effect of the sea?

A

They have a set of blood supply in their limbs

43
Q

How do crickets make a chirping noise?

A

By rubbing their wings together

44
Q

When do crickets chirp faster?

A

On warmer days

45
Q

How do you work out the temperature (in degrees c) by counting the number of chirps? - 4

A

Take number of chirps per minute
Divide by 4
Add 8
Divide by 1.8

46
Q

Describe an insect - 1

A

Invertebrate with 3 pair of legs

47
Q

Describe a mollusc - 3

A

Invertebrates with 0 legs
Have antennae
Have had shell

48
Q

Describe arachnids - 3

A

Invertebrates with 8 legs
No antennae
NOT INSECTS

49
Q

Describe crustaceans - 1

A

Invertebrates with more than 3 pairs of legs and antennae

50
Q

Describe segmented worms - 4

A

Invertebrates with 0 legs
No antennae or tentacles
Have long bodies
Have rough, segmented skin