Theo quan niệm tiến hóa hiện đại, chọn lọc tự nhiên tác động lên mọi cấp độ tổ chức sống, trong đó quan trọng nhất là sự chọn lọc ở cấp độ:

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose a word that has different stress pattern:

  institute                  operate                    imprison                 activist

• Choose a word that has different stress pattern:

  medical                 funeral                 several                  pioneer

• Choose the word that has the underlined part pronounced differently from the rest:  

  racial                democracy                       central                 receive

• Choose the word that has the underlined part pronounced differently from the rest:  

  released                 loosed                  increased                  raised 

• Choose the correct sentence which is built from the words and phrases given:

  He / publish / spelling book / dictionary / changes / way / English was used in the USA.
  
  

• Choose the word that has the underlined part pronounced differently from the rest: 

  sometimes               badminton                   twice                      riding

• Choose the correct sentence which is built from the words and phrases given:

  Two days ago / I / buy / a CD-ROM of Cambridge Advanced Learner’s Dictionary / your shop / I still keep the receipt.
  
  

• Choose the correct sentence which is built from the words and phrases given:

  I / not install the program into my computer / I / take / the CD back / the shop / ask for another one.
  
  

• Choose the correct sentence which is built from the words and phrases given:

  Now / I would like / have a refund / change for a better one.
  
  

• Choose a word that has different stress pattern:

  bonus                breakfast                     hurry                    receive