Предмет: Биология, автор: tamaramel1609

пауко образные и рако образные сравнить ​

Ответы

Автор ответа: sovagolova
2

Сравним паукообразных и ракообразных.

Сходства:

1) Все они являются представителями класса членистоногие.

2) Их тело состоит из головогруди и брюшка.

3) Имеют хитиновый покров и поперечно-полосатые мышцы.

4) Незамкнутая кровеносная система.

Различия:

1) У паукообразных 8 ног, у ракообразных - 10.

2) Ракообразные имеют две пары усиков, у паукообразных они отсутствуют.

3) У ракообразных пара сложных глаз на подвижных усиках, у паукообразных 8 простых глазков

4) Для паукообразных характерно внешнее пищеварение - когда а тело жертвы впрыскивается пищеварительные ферменты. Жертва переваривается, находясь не внутри паукообразного, а в окружающей среде. После этого перевпренную массу паукообразное всасывает и усваивает.

5) У паукообразных сердце предоставлено трубочкой, у ракообразных сердце пятиугольной формы.

6) У ракообразных имеется личиночная стадия развития. Потомство развивается на брюшных ножках матери. Паукообразные же откладывают яйца в кокон.

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Предмет: Английский язык, автор: alinapereginec679
The text for teachers

A dangerous pool

Jimmy lived in the country and he loved to play in a small river near the house. But then his father got a job in a big city, and Jimmy went to live there with his family.

Their new house had a big garden, but the garden was very small. Jimmy wasn't very happy. "Is there a river near there?" he asked his mother on the first morning. His mother answered, "No, there is not, but there's a beautiful park near here, Jimmy, and there's a pool in it. We'll go there this afternoon." Jimmy was happy.

After lunch, Jimmy and his mother went to the park. Jimmy wanted to come near the pool, but there was a warning in front of it. His mother read it to him. "This pool is dangerous. 157 people fell into it." Jimmy looked into the pool and then said, "I can't see them."

warning - попередженняThe control-audition for the 5 ^ (th) form pupils

СРОЧНО!!!!!!!!!!! the first term

I. Вибери правильну відповідь і постав + або -

1) Jimmy and his parents lived in the country, 2) There was a forest near their house.

3) Jimmy's father got a new job in a big city.

4) Their new house had a big garden.

5) There was a small river in the park.

6) Jimmy and his mother went to the park after

lunch.

7) Jimmy looked into the pool and saw 157

people there.

П.Вибери правильну відповідь на

запитання

1) Where did jimmy live?

a) In a small town

b) In the country.

2) Where did Jimmy like to play?

c) In a big city.

a) in the forest. the small river.

b) in the yard

c) in

3) What did Jimmy's father get?

a) A new job. A new car.

b) A new shop.

4) What was there near Jimmy's new

a) A river.

b) A forest.

c) A park.

5) Who took Jimmy to the park?

a) His father.

b) His mother.

c) His granny

6) What did they see near the pool?

a) A warning.

b) A boat.

A crocodile.

7) How many people did Jimmy see in the pool?

a) 157. c)None.

b)7.

house?​