(a(i))[3]
State other causes that could make a plant species become endangered.
(a(ii))[4]
Describe how human activity is driving climate change.
(b(i))[3]
Explain why seeds from one species are collected from many populations to store in a seed bank.
(b(ii))[1]
State one possible effect of exposing seeds to ionising radiation.
(b(iii))[2]
Explain the reason.
(c(i))[3]
State the requirements that seeds need in order to germinate.
(c(ii))[4]
Explain why it would be important to reintroduce plants with many large roots.
(c(iii))[1]
State the name of the phase in a population growth curve where the number of individuals is very low.