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Biology > B2 > Flashcards

B2 Flashcards

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1
Q

What is classification?

A

Where biologist put living things into groups, making them easier to study

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2
Q

Living things are grouped together if….

A

they share lots of similar characteristics

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3
Q

What are kingdoms?

A

Kingdoms are the five major groups living things are placed into

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4
Q

Give five characteristics of plants

A 
Made of many calls
Cells walls made of cellulose
Cells contain chloroplasts
Light used to make food by photosynthesis
Grow in a spreading manner
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5
Q

Give five characteristics of animals

A 
Made of many cells
No chloroplasts
Unable to make food so feed on other organisms
Compact body shape
Most are capable of moving around
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6
Q

Give three characteristics of fungi

A

Cell walls are produced of chitin
They reproduce by forming spores
Do not photosynthesise

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7
Q

Give one characteristic of protoctista

A

Mostly single-celled (except for large algae)

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8
Q

Give one characteristic for prokaryotes

A

No nucleus

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9
Q

What are some examples of plants

A

Flowers, mosses grasses

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10
Q

Give some examples of animals

A

Fish, insects, humans

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11
Q

Give some examples of fungi

A

Mushrooms, toadstools, yeast

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12
Q

Give some examples of protoctista

A

Amoeba, algae

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13
Q

Give an example of prokaryotes

A

Bacteria

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14
Q

What are vertebrates?

A

Animals with a backbone

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15
Q

What are the five kingdoms?

A

Animals, plants, fungi, protoctista, prokaryotes

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16
Q

What is the largest animal phyla? How much of animal species do they represent?

A

Arthropods. They represent 75% of animal species

17
Q

What are the 4 classes of arthropods?

A

Myriapods

Crustacea…

18
Q

…

A

…

19
Q

What are species?

A

Species are a group of similar organisms that are capable of interbreeding to produce fertile offspring

20
Q

What is the binomial system?

A

It is used by biologists to name organisms

21
Q

Explain the two part name in the binomial system

A

Each species are known by a two part name

The first name is the genus, and the second name identifies a single species

22
Q

How may closely related species look different?

A

If they live in different habitats

23
Q

What are the 4 similar characteristics chimpanzees share with humans?

A

Have a backbone
Feed young with milk
Skin covered in hairs
Grasping hands

24
Q

What is a hybrid?

A

Where the individuals of two closely related species can breed together. The offspring is a mixture of two different parents

25
Q

How do bacteria reproduce?

A

Asexually

26
Q

What is the concept of constant evolution?

A

That organism are slowly changing. They can eventually become new species

27
Q

What does a food chain show?

A

A food chain shows what organisms can eat, and the flow of energy form one organism to the next

28
Q

What is each link in the food chain called and why?

A

Each link in the food chain is a separate feeding level called a trophic level

29
Q

What are producers?

A

They are organisms such as plants that can make their own food. These always start the food chain

30
Q

What are consumers?

A

These are organisms that eat other organisms

31
Q

What are herbivores? What are they known as? What link are they in the food chain?

A

Herbivores are animals that eat other animals. They are also know as primary consumers. They are the second link in the food chain.

32
Q

What are carnivores? What are they known as? What link are they in the food chain?

A

These are animals that eat other animals. They are called secondary consumers. They are the third link in the food chain.

33
Q

What are top carnivores

A

Top carnivores are animals that eat other animals

34
Q

What are omnivores?

A

These are animals that eat both plant and animals meaning they are primary and secondary consumers

35
Q

What are detrital food chains?

A

These are food chains that start with dead material or waste

36
Q

What are the two feeding types in the detrital food chain?

A

Detritivores - organisms that eat dead material such as dry leaves
Decomposers - decay the bodies of other organisms, but they do not eat them

37
Q

What is the difference between food chains and food webs?

A

Food chains show animals eating only one food source. Food webs are where animals may link to several food chains.

Biology (8 decks)

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