Level 2
Level 3

the last level of mine~~ there there Naby's here


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photosynthesis
converts solar energy into chemical energy usable by plants光合作用(赶快!安放!植物!)
phytoplankton
plant-like micro-organisms浮游生物~~
pioneer species
first organisms in an area to survive and reproduce 开拓者生物
ppm
one particle mixed with 999999 other particles 百万分之一
predation
one organism kills and eats another捕食
producer
organisms that produce food in form of carbohydrates through photosynthesis生产者
proliferation
grow by rapidly producing new tissues, cells or offspring生长
soil degradation
soil becomes less able to support life 土质退化
stability
populations can return to previous state after disturbance
symbiosis
two organisms live together in close association共生
terrestrial
things on land 陆上的;陆栖的
top consumer
predator or carnivore in 4th trophic level who eat secondary consumers (e.g. hawks and sea otters);最高级别消费者
toxin
poison 毒
trophic levels
number of energy transfers away from solar energy entering food chain营养级
zooplankton
animal-like micro-organisms浮游生物
Happy
How do you feel when you finish learning those words 不能快乐更多~~