Flashcards
B1 Topic 1 Edexcel
Flashcards do conjunto (47)
- 1What are the features of the Animalia kingdom?Multicellular
No cell walls
No chlorophyll
Heterotropic - 2What are the features of the Plantae kingdom?Multicellular
Has cell walls
Has chlorophyll
Autotrophic - 3What are the features of the Fungi kingdom?Multicellular
Has cell walls
No chlorophyll
Saprophytic - 4What are the features of the Protoctista kingdom?Unicellular
Has a nucleus - 5What are the features of the Prokaryote kingdom?Unicellular,
doesn't have a nucleus - 6Give two reasons why scientists classify viruses as non-living?They cannot reproduce without a host,
They cannot move,
They are not made of cells,
They don't have a cell membrane. - 7Define the term 'species'A group of similar organisms that can reproduce to give fertile offspring
- 8What are two limitations to the definition of a species?Some organisms reproduce asexually and some hybrids are fertile
- 9The phylum chordata all have what feature in common?A backbone/ supporting rod
- 10What are the three reasons that makes classification difficult?Variation,
Ring species,
Hybridisation - 11What are the three different ways of absorbing oxygen found in vertebrates?Lungs,
Gills,
Skin - 12What do oviparous animals do?lay eggs
- 13What do homeotherms do?Maintain their internal body temperature
- 14What is a hybrid?The offspring of two plants or animals of different species or varieties, such as a zorse
- 15'Differences between individuals' is better known as....?Variation
- 16What is the binomial name for human beings?Homo Sapien
- 17Name two vertebrate groups that have lungs?Mammals, Birds
- 18What are the two types of variation and give an example of each?Continuous e.g. height, weight...
Discontinuous e.g. eye color, blood group... - 19Draw a normal distribution graph.Enter text here...
- 20What are the two causes of variation?Genes & Enviroment
- 21What is a mutation?A change in an organisms DNA
- 22State the 6 stage of natural selectionVariation,
Over production,
Struggle for existence,
Survival & reproduction,
Advantageous characteristics inherited,
Gradual change in the population - 23Give two reasons why scientists classify viruses as non-living.They:
cannot reproduce without a host,
cannot move,
are not made of cells,
don't have a cell membrane - 24Define the term speciesA group of similar organisms that can reproduce to give fertile offspring
- 25What are the two limitations to the definition 'species'/Some organisms reproduce asexually and some hybrids are fertile
- 26The Phylum Chordata all have what feature in common?A backbone/ supporting rod
- 27What are three reasons that make classification difficult?Variation,
Ring species,
Hybridisation - 28What are the three different ways of absorbing oxygen found in vertebrates?Gills,
Lungs,
Skin - 29What do oviparous animals do?Lay eggs
- 30What do homeotherms do?Maintain their internal body temperature
- 31What is a hybrid?The offspring of two plants or animals of different species or variation e.g. a Mule
- 32'Differences between individuals. is better known as...?Variation
- 33What is the binomial name for human beings?Homo Sapien
- 34Name two vertebrate groups that have lungsMammals,
Birds - 35What are the two types of variation and give an example of eachContinuous e.g. height, weight...
Discontinuous e.g. eye colour, blood group... - 36Draw a normal distribution curve
- 37What are the two causes of variation?Genes & Enviroment
- 38What is a mutation?A change in an organisms DNA
- 39State the 6 stages of natural selectionVariation,
Overproduction,
Struggle for existence,
Survival,
Advantageous characteristics inherited,
Gradual change - 40Describe two adaptations of the polar bear
- 41What is a gene?A section of DNA/ a chromosome that codes for a particular characteristic
- 42Define the term alleleDifferent versions of the same gene
- 43What is the Genotype of a person who is heterozygous?Bb #any letter can be used
- 44What is the genotype of a person who is homozygous recessive?bb #any letter can be used
- 45What does the term phenotype mean?The outward characteristics caused by genes
- 46Give 2 symptoms of Sickle Cell AnemiaPainful joints,
Fatigue,
Shortness of breath,
Irregular heartbeat,
Jaundice - 47Give 2 symptoms of Cystic FibrosisPersistent cough,
Recurrent chest infections,
Mucus in the lungs,
Infertility,
Underweight,
Not producing digestive enzymes.
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