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Risk assessment = safety issues.

Example- Triticale, a hybrid mix between wheat and rye. Its purpose is to provide farmers with a crop that possesses desirable characteristics i.e. hybrid vigour. Its got a high yield, high crop quality, disease resistance and drought resistance as well :S I hope so too! :) Good luck everyone!

Or are you talking about the different evolutionary pathways proposed by scientists like Leakey or Johanson?

Heinemann and Oxford, with teacher's notes.

Fungi- multicellular, eucaryotic, heterotrophic, cell wall made of chitin. eg- candiasis, tinea Macroparasites - Organisms such as insects that cause disease and are visible to the eye. Can be ectoparasites or endoparasites eg- hydatid disease, taeniasis Describe the chemical nature of...

Whats the difference between apoptosis and necrosis?

Yup, I'm thinking cervical vaccination or equine influenza/quarantine for the 8 marker.

- Phagocytes can travel through the lymph system to destroy antigens/pathogens. - You've got lymph nodes around our body - they engulf and destroy bacteria and other foreign materials; thats why they become swollen in times of infection. - Lymphocytes become active during inflammation and...

You've got diphtheria and tetanus as examples of bacterial diseases that have been successfully controlled by vaccinations. EDIT: Also whooping cough.

Great answer.

You've also got how the sugar loads into the source in the first place - apoplastic and symplastic loading. But thats just way too detailed :S

Monohybrid crosses are only tested in our syllabus. :) Unless its tested in any of the option topics?

Agreed. I don't really think they can test us with a short response, let alone a long response answer, on Burnet. Perhaps a MC question, but thats all. Its like how the Ancient Hebrews and Chinese 3000 years ago developed hygience practices. Can't elaborate further on that I suppose :S

I guess you can talk about him and his clonal selection theory, or how he made a vaccination for influenza. Thats all I guess. And the scientists involved with malaria for the list.

Haha, yeah, I love this thread... great and useful information! And really good for revising :D Q: Discuss the evidence for the mutagenic nature of radiation.

And diffusion is too slow and only relies upon the random movement of particles.

Specific examples.

RBC: - bioconcave, no nucleus, 7~ micrometres, carries oxygen through Hb to body cells, large numbers WBC: - irregular shape, nucleus, 10-15 micrometres (depending on type of WBC), part of the immune response and defence mechanisms of the body (inc. phagocytosis, antibody production), less...

Both. Depends on the area of the nephron and the salt concentrations.

lol, do we have to use dates? :p Meh, Ancient Greeks made the link between swamps and malaria. 188X- Charles Laveran inspects micro-organisms (Plasmodium protozoans) within blood samples of infected blood patients of malaria. Golgi - ?!? Patrick Manson proposes that the mosquito was the cause...