Which of the following kingdoms includes a diverse collection of single-celled and multicelled organisms that have a nucleus?
A) Archaebacteria
B) Eubacteria
C) Fungi
D) Plantae
E) Protista
Question 2
Which of the following has been shown to cause liver cancer and harmful genetic mutations in animals?
A) DDT
B) Methyl mercury
C) PCBs
D) Polycyclic aromatic hydrocarbons
E) Sewage sludge