1. Which of the following could be part of the description of a for12+ea wahrlk1z hbw+3dg4w 9z est habitat on a mountain?rd+l39 w12gawewa b k1 z+h4zh
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 xmn waf*+z* 1yrequired for coral reef formation in an y 1*z+aw n*xfmocean?
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 folljnidib+)*b t .owing is a correct feature of a tundra biome but not for a tai tdnb).ji+b i*ga biome?

  4. What is the best description of the limits of tolerance v1 vo6r:/ivrhof a species?

(a) Divided leaves

(b) Low stomatal densitf5zfd cdmk ,hx13;n:ly

(c) Leaves at the tol0-igx p jo(b4p of tall stems.

(a) List the two abiotic factors that are the determinants of t6i64tvypbf8 l he type of terrestrial biome6t lvy8fp6bi 4.

(b) Suggest one example of an area occupied by one thesef/,v3lwm ni:h biomes that may change due to global3ml,w fivh/ n: warming. Suggest a reason why this change may happen.

7. Borislava is an ecologist. She is responsible for the protected kc ++0s6h xtdm 4gz6lfj -/41roalsjkareas of a beach on the Mediterranean coast of Sp+o mfgklc60 sx41sdj4 tr/zja-l+h 6kain. 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 100x50m.

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

8. Outline three waym p-(hvm. yquv;kp :6p(wixn /s in which plants avoid being consumed by herbivorous animalsk:v/ymq;np ph.im -(xw6p u(v .