Read 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. There is a wide range of organisms by their population whose lives mostly depend on how they hunt or are hunted. And most living organisms have some way of protecting themselves from natural predators. Some mammals, like the platypus, carry internal toxins to transmit to predators via biting or other means, and some plants protect themselves by being ...
Nguyễn Thu Hiền | Chat Online | |
07/09 11:29:04 (Tiếng Anh - Lớp 12) |
Read 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.
There is a wide range of organisms by their population whose lives mostly depend on how they hunt or are hunted. And most living organisms have some way of protecting themselves from natural predators. Some mammals, like the platypus, carry internal toxins to transmit to predators via biting or other means, and some plants protect themselves by being poisonous. The African crested rat was originally thought to be poisonous because predators that tried to eat it often became paralyzed. But scientists have recently learned that's not actually the case.
The crested rat chews on the poisonous bark of a certain tree, and then smears the chewed-up substance onto its fur, where a strip of special quill-like hairs soaks up the poisonous mixture. Though similar to a porcupine's, the quills do differ: whereas the porcupine defends itself by poking predators, the African rat uses its quill-like hairs to deliver poison to them. When a predator comes after it, instead of running away, the rat stays put and parts its hair to reveal the strip of fur on its back where the poison is being stored. That raised strip is the first thing that receives a bite, and the poison inside disables the predator. These hair tubes are unusual. In fact, scientists do not know of another animal that uses plant poison in this way.
Scientists are puzzled that the rat doesn't appear to be affected by the poison. Because it affects heartbeat regulation, understanding how the rat can keep its heart rate regulated effectively while using the poison could help scientists develop new medicines for people with heart trouble. And they hope that those suffering from heart diseases will benefit from this.
What is the main purpose of the passage?
Lựa chọn một trả lời để xem Đáp án chính xác Báo sai đáp án hoặc câu hỏi |
A. To show how animals can affect plant life. 0 % | 0 phiếu |
B. To compare one animal to other similar ones. 0 % | 0 phiếu |
C. To emphasize the dangers of researching animals. 0 % | 0 phiếu |
D. To discuss an unusual animal defense technique. 0 % | 0 phiếu |
Tổng cộng: | 0 trả lời |
Trắc nghiệm liên quan
- Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best option for each of the blanks. YOGA Yoga is one of the most ancient forms of exercise, originating in India 5000 years ago. Yoga has taken several ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best option for each of the blanks. YOGA Yoga is one of the most ancient forms of exercise, originating in India 5000 years ago. Yoga has taken several ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best option for each of the blanks. YOGA Yoga is one of the most ancient forms of exercise, originating in India 5000 years ago. Yoga has taken several ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best option for each of the blanks. YOGA Yoga is one of the most ancient forms of exercise, originating in India 5000 years ago. Yoga has taken several ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best option for each of the blanks. YOGA Yoga is one of the most ancient forms of exercise, originating in India 5000 years ago. Yoga has taken several ... (Tiếng Anh - Lớp 12)
- Read 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 Millions of people tune into the weather forecast each evening on television. Most of them imagine that the ... (Tiếng Anh - Lớp 12)
- Read 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 Millions of people tune into the weather forecast each evening on television. Most of them imagine that the ... (Tiếng Anh - Lớp 12)
- Read 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 Millions of people tune into the weather forecast each evening on television. Most of them imagine that the ... (Tiếng Anh - Lớp 12)
- Read 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 Millions of people tune into the weather forecast each evening on television. Most of them imagine that the ... (Tiếng Anh - Lớp 12)
- Read 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 Millions of people tune into the weather forecast each evening on television. Most of them imagine that the ... (Tiếng Anh - Lớp 12)
Trắc nghiệm mới nhất
- Theo GS. Trần Ngọc Thêm, ăn, mặc, ở, đi, lại là những yếu tố thuộc thành tố văn hóa nào? (Tổng hợp - Đại học)
- Xác định loại hình kinh tế - văn hóa dựa trên: (Tổng hợp - Đại học)
- Câu tục ngữ: “Giặc đến nhà đàn bà cũng đánh” là biểu hiện của: (Tổng hợp - Đại học)
- Schools are offering educational programs to have children _______ about the importance of conservation. (Tiếng Anh - Lớp 12)
- Bản chất của văn hóa được xem xét trong mối quan hệ: (Tổng hợp - Đại học)
- The more we understand the power of mass media, _______ we can use it for positive change. (Tiếng Anh - Lớp 12)
- Cách xác định các yếu tố cấu thành chỉnh thể văn hóa dựa trên nguyên tắc: (Tổng hợp - Đại học)
- Preserving natural habitats is key to protect biodiversity, _______ ultimately benefits all living things. (Tiếng Anh - Lớp 12)
- ASEAN is a growing and influential organisation that is playing _______ increasingly important role in the world. (Tiếng Anh - Lớp 12)
- Văn hóa thực hiện được chức năng của nó khi nó vận hành với tính cách là: (Tổng hợp - Đại học)