1. Which of the following could be part of the descriptiobe.gm ,jq:tg0 n of a forest habitat on a bgjg.m:et q0,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 are conditions required fo ir)j 38yjc5 a-bomy)caq-8e tr coral reef formation in an ocean?ao5a8i- )e8j)r bc q3-tcyjmy
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 apg u vfxh 4k2/-wx:0p ah5lv:i correct feature of a tundra biome but not for xp g-:p25 xhh4kw0au/ lvfv:i a taiga biome?

  4. What is the best description of thepgk,5,p4l reo limits of tolerance of a species?

(a) Divided leaves

(b) Low stomatal den ugbhaw9 n;;c0sity

(c) Leaves at the top ofvvs2kn8 :c/u b tall stems.

(a) List the two abiotic factors that are the determinants of the type okhr fgk40 va02f terrestrial b v0k f40h2grakiome.

(b) Suggest one example of an area occupied by one these biome x 0+cwdxc w pjsb-ibnd1*-nx/ .+zi/gs that may change due to global warming. Suggest a reason why this chan.zscw ic* 0g+ 1-b dnbnxp /xjdix+w/-ge may happen.

7. Borislava is an ecologist. She is responsible for the protected xc.dj6o794f*cz*p zli5 afrt areas of a beach on the Mediterranean coast of Spac7lfo zfdracp*4 j .956zx* tiin. 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 ways in which plants avoid3 9u9*pam9iggp)pu go being consumed by herbivorous animalsm)39oi gp9 9uagpug* p.