Download B1_Biology_Summary_Topic_1

KeyWords: Kingdoms, Chordata, vetebrates, invetebrates, bionomonal system,
B1 Topic 1 Classification, Variation and Inheritance
This topic looks at:
• General characteristics of animals and plants
• Problems surrounding classification
• Adaptations of organisms that can survive in extreme environments
• Variation, inheritance and Darwins theory of evolution
Organisms have adapted to live in extreme environments, what are two
examples of these?
1.
2.
Why is classification important?
Describe the characteristics of organisms within the FIVE vertebrate
kingdoms
a)
b)
c)
d)
e)
State the 5 kingdoms and their characteristics used to classify ALL
organisms
a)
Identification Key
Draw an identification key for bat,
dragonfly, eagle and fly.
Classification of veterbrates
What terms are used to describe
vertebrates and what they mean
b)
c)
Which species are hard to classify
d)
e)
Keywords:
Keywords: variation, continuous, discontinuous, genetic, environmental
B1 Topic 1 Classification, Variation and Inheritance
Describe the 6 steps of Darwin's theory of evolution by natural selection
This topic looks at:
• General characteristics of animals and plants
• Problems surrounding classification
• Adaptations of organisms that can survive in extreme environments
• Variation, inheritance and Darwins theory of evolution
What factors cause variation?
1.
2.
Variation in a species can be grouped into two types
Explain, give examples and draw a graph for each type of variation
Genetic Variation Draw punnet squares or genetic cross diagrams
1.
What do these keywords mean?
Chromosome
DNA
Explain how brown eyes parents can have a blue eyed child
2. Show the phenotype and genotype for a cat heterozygous for colour and
recessive for white.
Genes
Alleles
Recessive
Dominant
Heterozygous
homozygous
Phenotype
Genotype
Keywords: evolution, monohybrid inheritance
3. Brown eyes are dominant over blue eyes. A homozygous dominant male mates
with a heterozygous female