1. Which of the following could be part of the description of a forest habitat o0,,m5l *ezu+botbxlb. f;jpcn a mountain?;cml,b ue5* 0 ozbb,fp .ljxt+
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 are conditions reqswpw4qd // 2yhuired for coral reef formation in an o2p/yw/dhqs4 wcean?
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 following is a cor1p9 v sua,1gflkd))sy c6f ym.rect feature of a tundra biome but not for a taiga bf)y ufga.k) yp1ssml9dc6,1 viome?

  4. What is the best de moffpnfi n1r;7 r(h6)46e) 1 cmqfrlhscription of the limits of tolerance of a species?

(a) Divided leaves

(b) Low stomatal dens )x7x*/4 1elevquaeu66ei k udity

(c) Leaves at the top of tall stems6cd2y)( -tchu r vuikt* -x6ju.

(a) List the two abiotic factors that are the determinants ya.7ebaa:n(iof the type of terrestrial biome7 abi (ean.ya:.

(b) Suggest one example of an area occupied by one these biomes that may cha0 sb a)z-yhhl a64fr6ofz* +oznge due to global warming. Suggest a rez40har+b sh 6yofz)zaf *6ol-ason why this change may happen.

7. Borislava is an ecologist. She is responsible for the cd.pxt1p/m f+s2-q8xkll/ yx protected 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 of approximately 100x50mckpx.8lxd-qy x+ 1t m sl/pf2/.

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 consumspob+1o )qje /3 hi+gj5(xk eged by herbivorous animal1 j5e qe/oip+( bshjg3 xg)k+os.