Предмет: Биология, автор: danxa2008

помогите пожалуйста решить ! Биология 7 класс

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Ответы

Автор ответа: elagolturenko
1

Ответ:

1)от влажности температуры тела

2)Приспособленность выражается в наличии век, защищающих глаза от высыхания, сложенных задних конечностях, при выпрямлении которых, лягушка способна быстро передвигаться по суше, и передних конечностей, которые защищают лягушку от удара о землю при приземлении. Кроме того лягушка имеет слизь на поверхности кожи, которая растворяет кислород и подавляет рост бактерий

3)Лягушки имеют клапаны на ноздрях, которые защищают их от попадания воды. Форма и расположение глаз и ноздрей на верхней части головы помогают лягушкам дышать воздухом, находясь при этом в воде. Благодаря наличию пространств между кожей и мускулатурой, лягушка запасает воду в организме, которая попадает через кожу

4)Ну роль задних лап это чтобы отталкиваться и по этому мышцы сокращаются и они прыгают...а пиредние для того чтобы держать тело..тоже самое они делают и в воде но только для плавания у них задействованы все лапы...

Ну это как я думаю...и по идее это правильно


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Предмет: Английский язык, автор: Димка160
Переведите пожалуйста ↓↓↓

The scientific and technical revolution has changed our life very
much.
The computers, the mobile phones and other digital devices have
entered our everyday life.
The atomic, space and energy age was followed by the age of
computers. The tasks which had seemed eternal before have been
solved one by one by computers. During the last decade many fundamental
changes occurred because of electronic devices. It is even difficult
to imagine the social and economic consequences of the microelectronic
revolution.
The large use of computers has influenced our life in such a way
that it was difficult to imagine 15 or 20 years ago. On the one hand,
computers have simplified our life greatly. If you typed a text on the
typewriter and made a mistake you had to type the whole page again.
Making several copies of the same document used to be a difficult job
too. But now it‘s quite different. Correcting mistakes is easy. Computer
also helps us to buy goods, find information, book tickets, make presentations
and annual reports, and make difficult calculations. Time is
saved for leisure.
Leisure time is also influenced by computer and other periphery
devices. You no longer go to the music shops – many things are available
on the internet. You needn‘t write letters to your relatives or friends
– you can send an e-mail. And your photo albums are on computer too.
Computer games are probably also a part of your free time. They
became more and more realistic and complicated, and for many people
it becomes impossible to tear themselves away. This means that electronic
devices, such as computer and TV set are used mostly for entertainment
and consume most of the time that could be spent on work, going for a walk and sleeping. Man becomes a slave of devices which
were designed to make him stronger.
Is there a way out? In fact, there is, but many people don`t know it
and are still slaves. The best decision is not to give these equipments
place in your heart. They should do their work. And when you have a
rest, prefer real communication to virtual one and living an active life to
watching films about crime. Then electronics will be not our lord or
enemy but our friend!