Fechar
How have desert animals adapted to save water and keep cool?
How have arctic animals adapted to reduce heat loss?
How have desert plants adapted to having little water?
How are some plants and animals adapted to deter predators?
What adaptations do microorganisms have?
Why do organisms compete for resources to survive?
What are the factors that cause environmental changes?
How do environmental changes cause population size to increase?
How do environmental changes cause population size to decrease?
How do environmental changes cause population distribution to change?
Why can environmental changes be measured using living indicators?
How can air pollution be measured by living indicators?
How can water pollution be measured by living indicators?
How can you tell if there's a problem with pollution using living indicators?
How can environmental changes be measured using non-living indicators?
What happens as you move up the food chain? But when is this not true and what is a better to look at the food chain?
How do you construct a pyramid of biomass and what does the pyramid represent?
How would you interpret pyramids of biomass?
How is energy used up by photosynthesis in a food chain?
How is energy used up by respiration in a food chain?
How does energy disappear in a food chain due to inedible materials?
How does the loss of energy explain why there are so few trophic levels in a pyramid of biomass?
How are elements cycled back to the start of the food chain?
What is compost?
What is in a compost bin?
What is the carbon cycle (describe part 1 of it)?
What is the carbon cycle (describe part 2 of it)?
Why do organisms of the same species have differences and what two types of variations are there?
Why do different genes cause genetic variation?
What is environmental variation?
How are characteristics also influenced by the environment?
How do the conditions a plant grows in cause environmental variations?
How do most characteristics depend on genes and characteristics use the height of a plant as an example?
What do nuclei carry?
What do chromosomes carry?
What are genes?
What happens to DNA to form chromosomes?
What are different versions of the same gene called?
What is sexual reproduction?
How does sexual reproduction produce genetically different cells?
What is asexual reproduction?
How does asexual reproduction produce genetically identical cells?
How can plants be cloned using cuttings?
How can plants be cloned using tissue culture?
How can you make animal clones using embryo transplants?
How can adult cell cloning be used to make a clone?
What are the issues surrounding cloning to do with a new disease appearing?
What are the positives surrounding cloning?
What are the issues surrounding health and the future?
How does genetic engineering use enzymes?
How is genetic engineering used to make human insulin?
How have plants been made resistant?
How have genes be used to produce drugs from sheep?
How has genetic engineering been used in gene therapy?
Why is genetic engineering a controversial topic?
What are the pros/ defences for genetically modified crops?
What are the cons/defences against GM crops?
What is the theory of evolution?
How does looking at the similarities and differences between organisms allow us the put them into groups?
How by studying similarities and differences between organisms can we understand how all living things are related (evolutionary relationships)?
How by studying the similarities and differences between organisms can help us to understand how they interact with each other (ecological relationships)?
How does natural selection work? Use rabbits with big ears and small ears as an example.
What is a mutation?
Why does evolution occur sometimes due to mutations?
Why didn't everyone agree with Darwin?
What was Lamarck's theory? Use the legs of a rabbit to explain it.
Why do scientists develop different hypotheses from similar observations?
Lamarck and Darwin both had different hypotheses to explain how evolution happens so what happened in the end with each hypothesis?
Why is Darwin's hypothesis now known as a theory?
