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Explain the role of the Sun in food chains on Earth
What is biomass and how does it change with each new stage in a food chain ?
The amounts of material and energy contained in the biomass of organisms are reduced at each successive stage in a food chain . Explain how.
Why do materials decay and what can increase the rate of decay ?
Why is the decay process important ?
Describe the carbon cycle
what are detritus feeders
what are chromosomes and where are they found
What do genes do ?
Differences in the characteristics of different individuals of the same kind may be due to differences in what ?
Describe sexual reproduction
Describe asexual reproduction
compare cloning a plans by cuttings and tissue culture
Describe how to clone and animal using embryos
Describe adult cell cloning
describe how to genetically alter an organism
give examples of genetically modified organisms
Give a benefit of genetically modified crops
what concerns are there about gm crops
what is a gene ?
what is carbon from the carbon cycle used to make
why is it more difficult to successfully clone animals than plants
list the benefits and disadvantages of adult cell cloning
what are the benefits of genetically engineering animals
why should you genetically engineer animals (insert a gene ) at an early stage of development
what is meant by the host animal
why does a compost heap get hot
why do we normally eat herbivores rather than carnivores
