More cards in this set

how many polypeptide chains make up one molecule of haemoglobin?

test for starch

molecule added to non-reducing sugar

second substance added to non-reducing sugar

an antibody has two binding sites, true or false?

cilia in nostrils, earwax, skin, eyelashes

active transport requires

the number of different species within a community

one way of determining how closely species are related - inside their cells

what comes before kingdom