Câu hỏi:
31/10/2020 355Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.
Living things include both the visible world of animals and plants as well as the invisible world of bacteria and viruses. On a basic level, we can say that life is ordered. Organisms have an enormously complex organization. Life can also “work”. Living creatures can take in energy from the environment. This energy, in the form of food, is changed to maintain metabolic processes and for survival. Life grows and develops. This means more than just getting larger in size. Living organisms also have the ability to rebuild and repair themselves when injured. Life can reproduce. Life can only come from other living creatures. Life can respond. Think about the last time you accidentally stubbed your toe. Almost instantly, you moved back in pain. Finally, life can adapt and respond to the demands placed on it by the environment. There are three basic types of adaptations that can occur in higher organisms.
Reversible changes occur as a response to changes in the environment. Let's say you live near sea level and you travel to a mountainous area. You may begin to experience difficulty breathing and an increase in heart rate as a result of the change in height. These signs of sickness go away when you go back down to sea level.
Body- related changes happen as a result of prolonged changes in the environment. Using the previous example, if you were to stay in the mountainous area for a long time, you would notice that your heart rate would begin to slow down and you would begin to breath normally. These changes are also reversible. Genotypic changes (caused by genetic change) take place within the genetic make up of the organism and are not reversible. An example would be the development of resistance to bug-killing chemicals by insects and spiders.
Which type of adaptation is permanent?
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Trả lời:
Đáp án C
Kiểu thích nghi nào là vĩnh viễn?
A. có liên quan tới cơ thể.
B. có thể đảo ngược.
C. kiểu gen.
D. thuộc về môi trường.
Dẫn chứng câu gần cuối bài: “Genotypic changes (caused by genetic change) take place within the genetic make up of the organism and are not reversible” – (Sự thay đổi kiểu gen (bị gây ra bởi biến đổi di truyền) diễn ra ở trong cấu trúc gen trên cơ thể và không thể đảo ngược)
=> Tức là kiểu thích nghi biến đổi gen này một khi đã xảy ra là không thể thay đổi, không thể biến đổi ngược trở lại được.
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
Mark the letter A, B, C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
Names of people in the book were changed to preserve anonymity.
Câu 2:
Mark the letter A, B, C or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
Yes, we went away on holiday last week, but it rained day in day out.
Câu 3:
Mark the letter A, B, C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
School uniform is compulsory in most of Vietnamese schools.
Câu 4:
It was so foggy that the driver couldn’t ______ the traffic signs.
Câu 5:
Choose the letter A, B, C or D to indicate the word whose underlined part is pronounced differently from that of the rest in each of the following questions.
Câu 6:
It was found that he lacked the ____ to pursue a difficult task to the very end
Câu 7:
Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is CLOSEST in meaning to the sentence given in each of the following questions.
My cousin shows a desire to put aside the status of the school child.
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