There is 1 buffalo. Its head is facing the direction of the rising sun, it turns left 2 times, then turns back, then turns right twice again asking which direction its tail points?

3T

31 : Thành Nguyên 7B

1 tháng 10 2021

There is 1 buffalo. Its head is facing the direction of the rising sun, it turns left 2 times, then turns back, then turns right twice again asking which direction its tail points?...

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#Tiếng anh lớp 7

0

PH

Phạm Hoài Nam

17 tháng 11 2021

6. Take the first turns on the right, and then go past the bus, Son.A B C D7. Because there are many factories in the suburbs of this city, so the air is very A B C Dpolluted.8. I like most of the things in Nha Trang such as friendly people, sand beaches A B ...

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#Tiếng anh lớp 6

1

HV

Hương Vy

17 tháng 11 2021

6 turns => turning

7 bỏ so

8 sand => sandy

9 that => the

10 narrow => narrower

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PH

Phạm Hoài Nam

17 tháng 11 2021

banj ơi

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LQ

Lê Quỳnh Anh

22 tháng 12 2018

Read the following text and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questionsMany ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger to the ground and depositing a tiny amount of trail pheromone –...

Đọc tiếp

Read the following text and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions

Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger to the ground and depositing a tiny amount of trail pheromone – a mixture of chemicals that delivers diverse messages as the context changes. These trails incorporate no directional information and may be followed by other ants in either direction.

Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept secret from members of other species. It is not surprising then that ant species use a wide variety of compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with the trail pheromone of the leafcutter ant Atta texana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth.

The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the vapor space.

The signal it receives causes it to swing to the left, and the ant then pursues this new course until its right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down the trail.

The word “intermittently” in paragraph 1 is closest in meaning to

A. roughly

B. incorrectly

C. rapidly

D. periodically

#Mẫu giáo

1

DH

Dương Hoàn Anh

22 tháng 12 2018

D

Kiến thức: Đọc hiểu

Giải thích:

Từ "intermittently" ở đoạn 1 có ý nghĩa gần nhất với

A. thô

B. không đúng

C. nhanh

D. định kỳ

"intermittently" ~ periodically: ngắt quãng, định kỳ

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LQ

Lê Quỳnh Anh

18 tháng 7 2017

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. Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger on the ground and depositing a tiny amount of trail...

Đọc tiếp

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.

Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger on the ground and depositing a tiny amount of trail pheromone - a mixture of chemicals that delivers diverse messages as the context changes. These trails incorporate no directional information and may be followed by other ants in either direction.

Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept secret from members of other species. It is not surprising then that ant species use a wide variety of compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with the trail pheromone of the leafcutter ant Attatexana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth.

The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the vapor space. The signal it receives causes it to swing to the left, and the ant then pursues this new course until its right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down the trail.

The word "forage" in line 1 is closest in meaning to________.

A. look up

B. search for food

C. walk toward

D. revolve around

#Mẫu giáo

1

DH

Dương Hoàn Anh

18 tháng 7 2017

B

"forage" = “search for food”: đi săn, đi tìm kiếm thức ăn

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DM

Dương Minh

13 tháng 10 2018

Read the following text and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger to the ground and depositing a tiny amount of trail pheromone...

Đọc tiếp

Read the following text and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions

Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger to the ground and depositing a tiny amount of trail pheromone – a mixture of chemicals that delivers diverse messages as the context changes. These trails incorporate no directional information and may be followed by other ants in either direction.

Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept secret from members of other species. It is not surprising then that ant species use a wide variety of compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with the trail pheromone of the leafcutter ant Atta texana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth.

The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the vapor space.

The signal it receives causes it to swing to the left, and the ant then pursues this new course until its right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down the trail.

The word “intermittently” in paragraph 1 is closest in meaning to

A. roughly

B. incorrectly

C. rapidly

D. periodically

#Mẫu giáo

1

NH

Nguyen Hoang Hai

13 tháng 10 2018

D

Kiến thức: Đọc hiểu

Giải thích:

Từ "intermittently" ở đoạn 1 có ý nghĩa gần nhất với

A. thô B. không đúng

C. nhanh D. định kỳ

"intermittently" ~ periodically: ngắt quãng, định kỳ

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LQ

Lê Quỳnh Anh

13 tháng 4 2019

Read the following passage and mark the letter A, 8, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42. Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger to the ground and depositing a tiny amount of...

Đọc tiếp

Read the following passage and mark the letter A, 8, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger to the ground and depositing a tiny amount of trail pheromone - a mixture of chemicals that delivers diverse messages as the context changes. These trails incorporate no directional information and may be followed by other ants in either direction.

Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept secret from members of other species. It is not surprising then that ant species use a wide variety of compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with the trail pheromone of the leafcutter ant Atta texana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth.

The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the vapor space.

The signal it receives causes it to swing to the left, and the ant then pursues this new course until its right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down the trail.

Question 37: The word "intermittently" in paragraph 1 is closest in meaning to _____.

A. roughly

B. incorrectly

C. rapidly

D. periodically

#Mẫu giáo

1

DH

Dương Hoàn Anh

13 tháng 4 2019

Đáp án D

Từ “in termittenﬂy” ở đoạn 1 có ý nghĩa gần nhất với ________.

A. roughly (adv): thô B. incorrectly (adv): không đúng

C. rapidly (adv): nhanh D. periodically (adv): định kỳ

Căn cứ vào ngữ cảnh của câu:

“As a worker ant returns home after ﬁnding a source of food, it marks the route by intermittently touching its stinger to the ground and depositing a tiny amount of trail pheromone - a mixture of chemicals that delivers diverse messages as the context changes." (Khi một con kiến thợ trở về nhà sau khi tìm ra nguồn thức ăn, nó đánh dấu đường đi bằng chạm ngòi của nó ngắt quãng trên mặt đất và để một lượng pheromone nhỏ - một hỗn hợp các chất hóa học cung ứng các thông điệp đa dạng khi bối cảnh thay đổi)

=> “intermittently” ~ periodically: ngắt quãng, định kỳ

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LQ

Lê Quỳnh Anh

3 tháng 6 2018

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. Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger on the ground and depositing a tiny amount of trail...

Đọc tiếp

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.

Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger on the ground and depositing a tiny amount of trail pheromone - a mixture of chemicals that delivers diverse messages as the context changes. These trails incorporate no directional information and may be followed by other ants in either direction.

Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept secret from members of other species. It is not surprising then that ant species use a wide variety of compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with the trail pheromone of the leafcutter ant Attatexana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth.

The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the vapor space. The signal it receives causes it to swing to the left, and the ant then pursues this new course until its right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down the trail.

What is possibly the main topic of the passage?

A. The information contained in pheromones

B. The mass migration of ants

C. How ants mark and follow a chemical trail

D. Different species of ants around the world

#Mẫu giáo

1

DH

Dương Hoàn Anh

3 tháng 6 2018

C

Topic phù hợp nhất cho đoạn văn là How ants mark and follow a chemical trail

Trong đó, đoạn 1 là giới thiệu về pheromone – thành phần tạo nên a chemical trail; đoạn 2 là cách kiến đánh dấu vết và đoạn cuối là cách chúng lần theo, đi theo dấu vết đó

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LQ

Lê Quỳnh Anh

28 tháng 5 2018

Read the following passage and mark the letter A, 8, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42. Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger to the ground and depositing a tiny amount of...

Đọc tiếp

Read the following passage and mark the letter A, 8, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger to the ground and depositing a tiny amount of trail pheromone - a mixture of chemicals that delivers diverse messages as the context changes. These trails incorporate no directional information and may be followed by other ants in either direction.

Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept secret from members of other species. It is not surprising then that ant species use a wide variety of compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with the trail pheromone of the leafcutter ant Atta texana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth.

The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the vapor space.

The signal it receives causes it to swing to the left, and the ant then pursues this new course until its right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down the trail.

Question 42: According to the passage, the highest amount of pheromone vapor is found

A. in the source of food

B. in the receptors of the ants

C. under the soil along the trail

D. just above the trail

#Mẫu giáo

1

DH

Dương Hoàn Anh

28 tháng 5 2018

Đáp án D

Theo đoạn văn, lượng pheromone cao nhất được tìm thấy_________.

A. trong nguồn thức ăn B. trong các thụ thể của kiến

C. dưới đất dọc theo dấu vết D. ngay phía trên dấu vết

Căn cứ vào thông tin trong câu sau:

“A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail,” (Một dấu vết pheromone sẽ bay hơi để cung ứng nồng đó hơi cao nhất trên dấu vết.)

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LQ

Lê Quỳnh Anh

28 tháng 6 2017

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. Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger on the ground and depositing a tiny amount of trail...

Đọc tiếp

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.

Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger on the ground and depositing a tiny amount of trail pheromone - a mixture of chemicals that delivers diverse messages as the context changes. These trails incorporate no directional information and may be followed by other ants in either direction.

Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept secret from members of other species. It is not surprising then that ant species use a wide variety of compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with the trail pheromone of the leafcutter ant Attatexana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth.

The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the vapor space. The signal it receives causes it to swing to the left, and the ant then pursues this new course until its right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down the trail.

According to the passage, the highest amount of pheromone vapor is found________.

A. in the receptors of the ants

B. under the soil along the trail

C. in the source of food

D. just above the trail

#Mẫu giáo

1

DH

Dương Hoàn Anh

28 tháng 6 2017

D

Thông tin ở câu thứ 2 đoạn số 3: “A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail” = just above the trail: ngay phía trên dấu vết

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DM

Dương Minh

27 tháng 10 2017

Read the following text and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger to the ground and depositing a tiny amount of trail pheromone...

Đọc tiếp

Read the following text and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions

Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger to the ground and depositing a tiny amount of trail pheromone – a mixture of chemicals that delivers diverse messages as the context changes. These trails incorporate no directional information and may be followed by other ants in either direction.

Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept secret from members of other species. It is not surprising then that ant species use a wide variety of compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with the trail pheromone of the leafcutter ant Atta texana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth.

The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the vapor space.

The signal it receives causes it to swing to the left, and the ant then pursues this new course until its right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down the trail.

According to the passage, the highest amount of pheromone vapor is found

A. in the source of food

B. in the receptors of the ants

C. under the soil along the trail

D. just above the trail

#Mẫu giáo

1

NH

Nguyen Hoang Hai

27 tháng 10 2017

D

Kiến thức: Đọc hiểu

Giải thích:

Theo đoạn văn, lượng pheromone cao nhất được tìm thấy

A. trong nguồn thức ăn

B. trong các thụ thể của kiến

C. dưới đất dọc theo dấu vết

D. ngay phía trên dấu vết

Thông tin: A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail

Dịch bài đọc:

Nhiều con kiến đi kiếm thức ăn với số lượng lớn và di cư nhiều; những hoạt động này diễn ra bởi một con kiến tạo ra một dấu vết trên mặt đất để những con khác đi theo. Khi một con kiến thợ trở về nhà sau khi tìm ra nguồn thức ăn, nó đánh dấu đường đi bằng chạm ngòi của nó ngắt quãng trên mặt đất và để một lượng pheromone nhỏ - một hỗn hợp các chất hóa học cung ứng các thông điệp đa dạng khi bối cảnh thay đổi. Những dấu vết này không kết hợp thông tin phương hướng và có thể được đi theo sau bởi các con kiến khác ở cả hai hướng.

Không giống như một số thông điệp khác, chẳng hạn như một thông điệp phát sinh từ một con kiến chết, một con đường kiếm ăn phải được giữ bí mật khỏi các loài khác. Không có gì đáng ngạc nhiên khi kiến sử dụng nhiều loại hợp chất như dấu vết pheromones. Kiến có thể rất nhạy cảm với những tín hiệu này. Các nhà điều tra làm việc với dấu vết pheromone của loài kiến cắn lá Atta texana tính toán rằng một miligam của chất này sẽ đủ để dẫn một dãy kiến đi ba lần vòng quanh Trái đất.

Hơi của pheromone bay hơi trên dấu vết sẽ dẫn một con kiến dọc theo con đường, và con kiến phát hiện ra tín hiệu này với các thụ thể trong ăngten của nó. Một dấu vết pheromone sẽ bay hơi để cung ứng nồng độ hơi cao nhất trên dấu vết, trong cái gọi là không gian hơi. Khi đi theo dấu vết, kiến di chuyển sang phải và trái, dao động từ bên này sang bên kia đường thẳng của dấu vết, đưa ăngten đầu tiên và sau đó là ăngten khác vào không gian hơi. Khi con kiến di chuyển sang phải, ăng ten bên trái của nó sẽ đến không gian hơi. Các tín hiệu nhận được làm cho nó ngoặt sang trái, và con kiến phía sau đó theo cách này cho đến khi các ăng-ten bên phải của nó đến không gian hơi. Sau đó nó quay về phía bên phải, và tới lui theo dấu vết.

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