Предмет: Биология, автор: ruslanmozhancev

с чем связаны крупные размеры яйцеклеток по сравнению с сперматозоидом?

Ответы

Автор ответа: Аноним

Яйцеклетка содержит большее количество питательных веществ ( из-за этого имеет крупный размер) , что бы кормить и обеспечивать зародыша питательными веществами. А сперматозоид имеет небольшой размер , потому , что он всего лишь оплодотворяет яйцеклетку , не участвуя в дальнейшем в развитии зародыша)

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Математика, автор: anuarbekgulimaj

Помоги!
Пожалуйста
4 класс дроби

6 лет назад

Предмет: Английский язык, автор: Helldreyn

Fill in the gaps with to-infinitive, infinitive without to or -ing form.
I want to take (take) Cambridge exams in summer.
1. Would you like_____(play) the violin?
2. Are you ready____(write) the test?
3. Does he want____(play) water polo with us?
(
1. My mother really enjoys______(write) stories.
5. Let's_____(stay) at home tonight.
6. Don't let children_____(take) sharp knives.
7. I'm happy_____(study) at this university.
8. Are you interested in____(travel) around the world?
9. They don't mind____(work) in the garden with their
grandparents.
10. Helen dislikes______(answer) questions about her job.
11. I'd like_____(join) the fitness club.
12. What can he_____(do) for us?
13. My sister always lets me______(use) her computer.
14. Can you_____(tell) me the truth?

6 лет назад

Предмет: Английский язык, автор: Аноним

Read the following paragraphs and complete the sentence. Write the word as shown in the example. Don't put the full stop after the word.

Example: table

The paragraphs:

A lot of people like bananas. Europeans probably first brought them from Asia. Historians say that it was Alexander the Great who first saw them in India. But on the large scale, the import of bananas to Britain began near the end of the 19th century. Nowadays they mainly come to Britain from Central America.

There is a well-known story about one English lord who liked bananas very much. Once, when he was eating a banana, a friend of his said, “Nothing tastes better than a banana right from the tree.”

The words made the lord think. It is not hot enough to grow bananas in Britain. So the lord built a special greenhouse and bought a banana plant. The house was heated day and night. The lord had to wait for the first banana for a long time, but at last! The first banana was ripe.

The first banana was _________.

6 лет назад

Предмет: Обществознание, автор: решка2323