Excretion
Plants:
a) Release excess oxygen when photosynthesising
b) Release carbon dioxide when respiring
c) Other waste is stored in leaves and released when leaves fall off (below)
Animals:
Excretion is via:
a) Sweat glands (illustrated below)
b) Breathing out Carbon Dioxide
c) Elimination of faeces and urine
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-log-table-1.4df6ee6.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-log-table-2.d516bb3.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-anti-log-table-1.b0b0513.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-anti-log-table-2.f89189d.jpg)