Read the following passage and mark A, B, C or D on your answer sheet to indicate the correct answer for each of the questions Coincident with concerns about the accelerating loss of species and habitats has been a growing appreciation of the importance of biological diversity, the number of species in a particular ecosystem, to the health of the Earth and human well-being. Much has been written about the diversity of terrestrial organisms, particularly the exceptionally rich life associated ...
Tôi yêu Việt Nam | Chat Online | |
02/09 13:22:34 (Tiếng Anh - Lớp 12) |
Read the following passage and mark A, B, C or D on your answer sheet to indicate the correct answer for each of the questions
Coincident with concerns about the accelerating loss of species and habitats has been a growing appreciation of the importance of biological diversity, the number of species in a particular ecosystem, to the health of the Earth and human well-being. Much has been written about the diversity of terrestrial organisms, particularly the exceptionally rich life associated tropical rain-forest habitats. Relatively little has been said, however, about diversity of life in the sea even though coral reef systems are comparable to rain forests in terms of richness of life.
An alien exploring Earth would probably give priority to the planet's dominants - most distinctive feature - the ocean. Humans have a bias toward land that sometimes get in the way of truly examining global issues. Seen from far away, it is easy to realize landmasses occupy only one-third of the Earth’s surface. Given that two thirds of the Earth's surface is water and that marine life lives at all levels of the ocean, the total three-dimensional living space of the ocean is perhaps 100 times greater than that of land and contains more than 90 percent of all life on Earth even though the ocean has fewer distinct species.
The fact that half of the known species are thought to inhabit the world's rain forests doesn't seem surprising, considering the huge numbers of insects that comprise the bulk of the species. One scientist found many different species of ants in just one tree from a rain forest. While every species is different from every other species, their genetic makeup constrains them to be insects and to share similar characteristics with 750,000 species of insects. If basic, broad categories such as phyla and classes are given more emphasis than differentiating between species, then the greatest diversity of life is unquestionably by sea. Nearly every major type of plant and animal has some presentation there.
To appreciate fully the diversity and abundance of life in the sea, it helps to think small. Every spoonful of ocean water life, on the order of 100 to 100,000 bacteria cells plus assorted microscopic plants and animals, including larvae of organisms ranging from sponges and corals to starfish and clams and much more.
Why does the author compare rain forests and coral reefs in paragraph 1? Most of their inhabitants require water.
Lựa chọn một trả lời để xem Đáp án chính xác Báo sai đáp án hoặc câu hỏi |
A. They are approximately the same size. 0 % | 0 phiếu |
B. They share many similar species. 0 % | 0 phiếu |
C. Most of their inhabitants require water 0 % | 0 phiếu |
D. Both have many different forms of life. 0 % | 0 phiếu |
Tổng cộng: | 0 trả lời |
Trắc nghiệm liên quan
- Read the following passage and mark A, B, C or D on your answer sheet to indicate the correct answer for each of the questions Coincident with concerns about the accelerating loss of species and habitats has been a growing appreciation of the ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark A, B, C or D on your answer sheet to indicate the correct answer for each of the questions Coincident with concerns about the accelerating loss of species and habitats has been a growing appreciation of the ... (Tiếng Anh - Lớp 12)
- Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to each of the following exchangesPeter: "Hi, David, do you think it's possible for you to have a talk sometime today?" - David: "_____." (Tiếng Anh - Lớp 12)
- Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to each of the following exchanges Interviewer: "What sort of job are you looking for?" - Curtis: "_______." (Tiếng Anh - Lớp 12)
- Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questionsIf you have some sufficient knowledge of English, you can make yourself understand almost everywhere. (Tiếng Anh - Lớp 12)
- Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions.Exceeding speed limits and fail to wear safety belts are two common causes of automobile death. (Tiếng Anh - Lớp 12)
- Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions In many places in the world, social or religious restrictions which prevent women from travelling freely. (Tiếng Anh - Lớp 12)
- Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following questions.In the Egyptian calendar, the first practical calendar created, the advent of ... (Tiếng Anh - Lớp 12)
- Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following questions Organized research may discourage novel approaches and inhibit creativity, so ... (Tiếng Anh - Lớp 12)
- Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the rest in the pronunciation of the underlined part in each of the following questions. (Tiếng Anh - Lớp 12)
Trắc nghiệm mới nhất
- Các nguyên tử của cùng một nguyên tố hóa học là đồng vị của nhau có sự khác nhau về (Hóa học - Lớp 12)
- Số lượng electron độc thân của nguyên tử S (Z = 16) là (Hóa học - Lớp 12)
- Cho các phát biểu sau (1) Phân lớp d có tối đa 10 electron. (2) Phân lớp đã điền số electron tối đa được gọi là phân lớp electron bão hòa. (3) Nguyên tử nguyên tố kim loại thường có 1 hoặc 2 hoặc 3 electron ở lớp ngoài cùng. (4) Nguyên tử nguyên tố ... (Hóa học - Lớp 12)
- Có mấy phương pháp bảo quản thức ăn? (Công nghệ - Lớp 11)
- Nguyên tử của nguyên tố Y có 14 electron ở lớp thứ ba. Thứ tự các lớp và phân lớp electron theo chiều tăng của năng lượng là: 1s 2s 2p 3s 3p 4s 3d... Cấu hình electron của nguyên tử Y là (Hóa học - Lớp 12)
- Cách biểu diễn electron trong AO nào sau đây không tuân theo nguyên lí Pauli? (Hóa học - Lớp 12)
- Bước 1 của quy trình sản xuất thức ăn hỗn hợp hoàn chỉnh là: (Công nghệ - Lớp 11)
- Quy trình ủ chua thức ăn thô, xanh gồm mấy bước? (Công nghệ - Lớp 11)
- Ý nghĩa của bảo quản thức ăn? (Công nghệ - Lớp 11)
- Sự phân bố electron trên các phân lớp thuộc các lớp electron dựa vào nguyên lý hay quy tắc nào sau đây? (Hóa học - Lớp 12)