Inglise keel unit 5 answers
8 fish / sea slugs / sponges / corals, die; (linked to oxygen loss)
9 AVP; e.g. increased mineral nutrients increases susceptibility of corals to
disease,
increased numbers of anaerobic species, ref to heavy metal toxicity 4 max
[4]
80. humans are eukaryotes / Escherichia coli is a prokaryote;
humans / eukaryotes have (accept ora)
larger, proteins / genes;
introns;
‘junk’ DNA / non-coding DNA;
repeating sequences;
centromeres / telomeres;
fossil genes;
E. coli cell much smaller; ora
selection for, less waste of space / more compact genome; 2 max
[2]
81. (i) semi-conservative replication;
annaabi.ee 
