CLASSIFICATION Flashcards

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
Explain NUTRITION
Food is used to provide energy to live | Green plants make their own food using sunlight
26
Give 4 characteristics of an AMPHIBIAN
1. Cold-blooded 2. Adults have lungs - larvae have gills 3. Moist skin 4. Lay jelly-coated eggs in water
27
Give 4 characteristics of a FISH
1. Cold-blooded 2. Have gills 3. Wet scales 4. Lay eggs in water
28
Give 5 characteristics of BIRDS
1. Warm-blooded 2. Have lungs 3. Feathers on body 4. Lay eggs with hard shells 5. Have wings
29
Give 5 characteristics of MAMMALS
1. Warm-blooded 2. Have lungs 3. Have body hair or fur 4. Give birth to live young 5. Produce milk
30
What does the word 'ENDOTHERM' mean?
warm-blooded, 'heat from within'
31
What is the scientific word for cold-blooded?
ECTOTHERM. | It means 'heat from outside'
32
What can ENDOTHERMS do?
Control their own body temperature by making their own heat from inside their body.
33
How is the body temperature of an ECTOTHERM controlled?
By picking up heat from the environment or losing heat to the environment
34
What is the main difference between an ENDOTHERM and an ECTOTHERM?
The ability to maintain a steady internal body temperature
35
Why are endothermic animals in cold climates on the large size?
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
What is the secret to Emperor penguins keeping warm?
Huddling - which is an extension of being big
37
What is a Daphnia - endothermic or ectothermic?
It is an invertebrate therefore ectothermic
38
Where does a Daphnia keep its heart?
On its back
39
How do marine iguanas warm up in the morning?
By sleeping with their back towards the sun
40
How does the colour of a marine iguanas skin help warm it up?
It's black skin absorbs the heat
41
What do marine iguanas eat?
Seaweed - it has special nostrils that remove unwanted salt
42
How do marine iguanas reduce the chilling effect of the sea?
They have a set of blood supply in their limbs
43
How do crickets make a chirping noise?
By rubbing their wings together
44
When do crickets chirp faster?
On warmer days
45
How do you work out the temperature (in degrees c) by counting the number of chirps? - 4
Take number of chirps per minute Divide by 4 Add 8 Divide by 1.8
46
Describe an insect - 1
Invertebrate with 3 pair of legs
47
Describe a mollusc - 3
Invertebrates with 0 legs Have antennae Have had shell
48
Describe arachnids - 3
Invertebrates with 8 legs No antennae NOT INSECTS
49
Describe crustaceans - 1
Invertebrates with more than 3 pairs of legs and antennae
50
Describe segmented worms - 4
Invertebrates with 0 legs No antennae or tentacles Have long bodies Have rough, segmented skin