Предмет: Биология, автор: Krisomanka01

Сходства и отличия кожного покрова птиц и пресмыкающихся

Ответы

Автор ответа: fireaura031

сходство:одинаковые слой клеток.
различия:
у птиц-перья, а у пресмыкающихся-ороговевшая чешуя.

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: nuriya28

Помогите с заданием по русскому языку срочно!

5 лет назад

Предмет: Қазақ тiлi, автор: pavelgerasimenkov

эссе на тему "мой верный друг" на казахском языке

5 лет назад

Предмет: Английский язык, автор: viktorkosilkin228

Read the text “Сloned human. Is it possible?”

dna-g4ecc2c46b_640.png
Рис. 1. DNA

100 years ago it was impossible to even imagine cloning in reality. The idea seemed unbelievable. Everything has changed since then. In 1996 scientists successfully cloned an animal for the first time. The sheep, Dolly, lived average life. That was truly the revolution in science. However, human cloning is yet to come, and there are several ethical, moral and social issues that come from this tempting idea.

There are a number of pros and cons of human cloning.
The pros include:
- Infertile people could have children made from cloned cells;
- A clone could be a source of transplant organs or tissues;
- Cell cloning could help scientists in gene research;
- Cloning could advance human development.

The cons:
- Human cloning could lead to exploitation;
- There is the issue of violation of the clone's rights;
- Cloning raises the question of a moral right to an exclusive identity;
- Using a clone as a source of transplant organs or tissues is morally questionable.

Nevertheless, scientists work on this idea, but it is still unclear if it can be done.

Match the parts. Write the correct number of the second part (1, 2, 3...):

The first part:

1. Human cloning could

2. However, human cloning is

3. Using a clone as a source of transplant organs or tissues is

The second part:

1) lead to exploitation.

2) made from cloned cells.

3) violation of the clone's rights.

4) transplant organs or tissues.

5) gene research.

6) an exclusive identity.

7) morally questionable.

8) human development.

9) tempting idea.

10) cloning in reality.

11) yet to come.

12) seemed unbelievable.

5 лет назад

Предмет: Геометрия, автор: TomKoshara55

Одна сторона прямокутника 15см а інша на 9 см менша за діагональ , знайти другу сторону прямокутника.

9 лет назад

Предмет: Математика, автор: ghtlvtn

-4,3+(-6,8-а), если а=6,6

9 лет назад