TOEFL 어휘

upper covering formed by a plant community's leaves

수관의 잎층; 위를 덮는 잎층

successive stages in an organism's development and reproduction

생활사; 생애 주기

animal of the class whose females produce milk

포유류

join with another animal for sexual reproduction

짝짓기하다; 교미하다

transformation from an immature form into a different adult form

변태; 변태 발달

organism too small to see without magnification

미생물

move regularly between habitats or regions

이동하다; 계절에 따라 이동하다

regular seasonal movement between habitats

동물의 이동; 계절 이동

made up of many cells

다세포의

change in an organism's DNA sequence

돌연변이; DNA 염기 서열의 변화

species occurring naturally in a particular area

자생종; 토착종

spread of advantageous inherited traits

자연 선택

sweet plant secretion that attracts feeding animals

꽃꿀; 식물이 분비하는 단 액체

active mainly during the night

야행성의; 주로 밤에 활동하는

cell structure containing most genetic material

세포핵

circulation of nutrients through organisms and their surroundings

영양분 순환; 영양 물질 순환

young produced by an organism

자손; 새끼

animal that eats both plant and animal food

잡식 동물

individual living thing

생물; 유기체

use of light energy to produce sugars

광합성

fine grains involved in seed-plant reproduction

꽃가루

transfer pollen so a flower can be fertilized

수분시키다; 꽃가루를 옮기다

transfer of pollen enabling fertilization

수분; 꽃가루받이

number of organisms within a unit of space

개체군 밀도; 인구 밀도

animal that captures other animals for food

포식자; 포식 동물

animal or animals hunted and eaten by a predator

먹잇감; 피식 동물

gene variant whose trait effect is masked by a dominant variant

열성 대립유전자

free nutrients for use by other organisms

영양분을 방출하다

produce new individuals of the same kind

번식하다; 자손을 낳다