In contrast, desert scrub ecosystems have the lowest productivity because their climates are
a) extremely hot and dry
b) extremely cold and dry
c) extremely hot and wet
d) none of these
In oceans light penetrate only into the uppermost level of oceans, so photosynthesis occurs in……………..
a) surface and near surface water
b) only upper surface water
c) both a and b
d) none of these
Among aquatic system the highest net primary production is that of………..
a) algal buds
b) coral reefs
c) both a and b
d) none of these
In contrast to land the most primary production is carried out by
a) vascular plants
b) non vascular plants
c) bryophytes
d) all of above
Most primary production in the oceans is done by…………..
a) microscopic algae
b) fungi
c) bacteria
d) insects
A graphical representation designed to show the number of organisms energy relationship and biomass of an ecosystem
a) ecological pyramid
b) food web
c) pyramid of biomass
d) none of these
