B1- Topic 1

Flash cards about B1 - topic 1 

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Name some features organsisms in the animalia kingdom have?
heterotrophic, multicellular,no cell wall, no chloropyll
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Name some features organsisms in the plantae kingdom have?
autotrophic,chloropyll,multicellular,rigid cell wall
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Name some features organsisms in the fungi kingdom have?
saprophitic, multicellular, no chloropyll
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Name some features organsisms in the proctotcista kingdom have?
unicellular, have a nucleus e.g. algae
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Name some features organsisms in the prokaryote kingdom have?
unicellular, no nucleus e.g.bacteria
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What is the main characteristic of orgainsms in the phylum chordata?
They all have a supporting rod like structure that supports their body
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what do all vertebrates have in common?
backbone and internal skeleton
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what does oviparous mean?
Oviparous animals are animals that lay eggs and tend to fertilise externally
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Example of an oviparous animals?
fish, amphibians, reptiles, all birds
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What does viviparous?
They give birth to live young from their body and tend to fertilise internally
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Define the word species?
A species are organisms that can interbreed to produce fertile offspring
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What is a hybrid?
An offspring from two different species,they are usually infertile.
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What is a ring species?
A group of related populations that live in neighbouring areas, the areas they live determines if they can breed.
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What is the binomial system?
where each organism is given a two part name, the first part-genus, second-species
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What are the two causes for variaton?
Enviroment and Genes
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What is genetic variation?
The combination of genes from two parents
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Describe another way genetic variation can occur?
Mutations, a change in a persons gene causes differences in characteristics
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What is continuous variation?
Individuals in a population vary within a range, no distinct categories
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What is discontinuous variation?
where there are two or more distinct categories
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Give an example of continuous variation?
Height,weight, heart rate, finger length, hand span
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Give an example of discontinuous variation?
tongue rolling,finger prints,eye colour,blood groups
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Name some ways the deep sea angler fish have adapted to their enviroment?
rod shaped spine that gives out light, huge mouths to scoop up food, huge eyes
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What are volcanic vents?
vents in the seabed that send out hot water and minerals.
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What is chemosynthesis?
Bacteria can make their own food using chemical energy
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State some ways polar bears have adapted to living in polar regions?
thick hairy coats,large feet,white fur
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What does Darwins theory of evolution state?
Individuals with better adapted characteristics to the environment have a better chance of survival.
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Why do the scientific community publish their work in scientific journals?
if experiments is repeated and scientist gets similar results then the evidence is reliable.
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Why do the scientific communitys work have to undergo peer view before its published?
scientists check each others work to check if its valid.
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Why do the scientific community have to hold scientific conferences?
meetings where scientists attend to present and discuss work
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What is speciation?
The development of a new species, species become so different they can no longer breed to produce offspring.
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what is isolation?
populations of species are seperated an be by a physical barrier like a flood or earthquake
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Other cards in this set

Card 2

Front

Name some features organsisms in the plantae kingdom have?

Back

autotrophic,chloropyll,multicellular,rigid cell wall

Card 3

Front

Name some features organsisms in the fungi kingdom have?

Back

Preview of the front of card 3

Card 4

Front

Name some features organsisms in the proctotcista kingdom have?

Back

Preview of the front of card 4

Card 5

Front

Name some features organsisms in the prokaryote kingdom have?

Back

Preview of the front of card 5
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