1. Which of the following could be part -f)o, r(:qhhxje .isf of the description of a forest habitat on qfie-o(.rhx )sj :f h,a mountain?
I. The community in the forest.
II. The population of a species.
III. The annual mean rainfall.
IV. The location of the mountain range

  2. Which of the following arax :3yx 1at2lni+c4 zue conditions required for coral reef formation in an ocean1ul +:xzxa4cn y2ta i3?
I. Appropriate salinity of the water.
II. The presence of coral grazing species.
III. The annual mean temperature of the ocean between 22 and 27°C.
IV. The depth of the water allows sunlight to reach the reef.

  3. Which one of the fol0n d8r4if, 9pk smq,-sl/qcbxlowing is a correct feature of a tundra biome but not for a taiga bl0bs,xr-qp9 qk fmd ,i8/snc4 iome?

  4. What is the best description of the limid u3bjze w*.ve cp5*1jts of tolerance of a species?

(a) Divided leaves

(b) Low stomatal densuh w-ydf*+ (o*g u wkebk8cs4:ity

(c) Leaves at the top of tall h/x5mu :9vm8nzt n5 mql0)8spgo: dfjstems.

(a) List the two abiotic factors that arj,u01 tqckpy7p7; cz ae the determinants of the type of terrestrial biom7q,tz7jyp 0uca; 1cp ke.

(b) Suggest one example of ansk cp;zj508p2t .e zwx area occupied by one these biomes that may change due to global warming. Suggeswxsp .8czk 0ez 2jt;5pt a reason why this change may happen.

7. Borislava is an ecologist. She is responsible for the protecteduamj 2,:jo(oj areas of a beach on the Mediterranean coast of Spain. The area is protected because there are populations of rare plants adapted to the sand dune habitat which is a hostile environment for many plant species. The conservation areas are each ofj:aj mu j2o(,o approximately 100x50m.

Explain how to carry out a line transect to monitor the distribution of plants in this part of the beach.

8. Outline three ways in which plants avoid being consume /c 6k2i8lozm3- nvx:dfl,ext d by herbivorous animalx:2 m3tlx-en,dzi o/ vk8cfl6s.