Which statement is incorrect about the pyramid of numbers? a.)the higher the trophic level, the lower the number of species and the larger their size. b.) the higher the trophic level, the higher the number of species and the larger their size. c.)the higher the trophic level, the lower the number of species and the smaller their size. d.)the higher the trophic level, the higher the number of species and the smaller their size.

Correct A.)The higher the trophic level, the lower the number of species and the larger their size

The pyramid of number is always inverted, it is because it might be the case that the single plant may support the growth of a lot of herbivores which in turn provide nutrition to many parasites. Hence, the number of organisms is showing an increase thus making the pyramid inverted.

So, the correct answer would be option A.

the wires in the toaster turning red and the toast crisping and turning brown

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."