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Перечислите древние признаки,которые сохранились у хрящевых рыб
Ответы 1
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1)Наверное самый главный признаком является хрящевой скелет , а не костный. Отсутствие позвонков.2) Отсутствует плавательный пузырь. 3) Отсутствие жаберных покрышек или жабр вовсе.
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Автор:
kirby - 6 лет назад
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ПОМОГИТЕ АНГЛИЙСКИЙЙЙЙЙЙЙЙЙЙЙЙЙЙЙЙЙЙЙЙ
Read the text and fi ll in the blanks (1—7) with the parts of the sentences (a—h). There is
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A lot of people nowadays are trying to change their lifestyles. They say they would rather
have a healthy way of life, which means no bad habits, a lot of fruit and vegetables in your
fridge, (1) ... . You can’t agree more. Bad habits influence our lives. Smoking, drinking alcohol,
taking drugs are the worst ones. It’s common knowledge that they can shorten our lives
dramatically. Smoking is very dangerous. It leads to (2) ... , makes your teeth yellow and
your looks unhealthy. Drugs tend to lead drug users to early deaths.
Fortunately, smoking, drinking and taking drugs have lately received a lot of bad publicity.
One can say that fewer people smoke these days. Some companies do not take on people
(3) ... . Smoking is not allowed in most public places because, as everyone agrees, it does a
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The majority of people these days spend most of the time sitting. They sit in cars
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1 a snack [snæk] — закуска
50Unit 1
home (5) ... . People choose passive entertainments (movies or video games, for instance)
rather than active ones (ice-skating, skiing, playing volleyball). And most things we do at
home that once used to depend on physical labour have become largely automated. Nowadays
we just press buttons or (6) ... . All this is very harmful to our hearts. People should
spend more time in fitness centres, gyms, swimming pools or just walking in woods or parks.
And no more excuses! It’s time to understand that (7) ... .
a) ask others to do work for us
b) who are smokers
c) don’t spend enough time in the open air
d) in their classrooms and offices
e) health is better than wealth
f) enough sleep and at least some physical exercise
g) a number of heart and lung diseases
h) watching TV-
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Термины ''личность животного'', ''личность новорожденного'' с научной точки зрения ошибочны. Объясните, почему. Какой термин следует употреблять в каждом случае?
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