Вопрос школьника по предмету Биология
Нитчатая зеленая водоросль улотрикс встречается в…
а.стоящих водоемах
б. пресных проточных водоемах
в. в морях и пресных водоемах
Ответ учителя по предмету Биология
Предпочитают пресные проточные воды, но встречаются и в морях(предпочтительнее слабосолёных).
Похожие вопросы от пользователей
1.Find the answer in the teхt : Why did Nancy go to cshool.
2.Составь план рассказа из следующих предложений.
Сам Текст!!!
MY NAUGHTY LITTLE SISTER GOES TO SCHOOL
One day my mother got a letter from my grandmother. She was ill, and asked my mother to come to her. «Take your sister to school with you,» said my mother to me.
«She can’t sit still (спокойно) for five minutes,» I said.
«I can sit still», said my little sister.
My mother wrote a letter to my teacher. My teacher answered:
«Yes, Nancy may come to school if she is a good girl.»
My sister was very happy. Do you know what she did? She found my father’s old bag and put a pencil and a notebook into the bag. She was a very good girl.
In the morning she got up early. She washed her face and neck and dressed quickly. After breakfast my mother went to my grandmother, and we went to school.
Our lessons began at 9 o’clock. But we came to the school yard earlier (раньше). My sister said «Good morning!» to everybody in the yard. When we came into the classroom, the teacher said:
«Jack is ill. So your sister may sit at his desk.»
My sister did not talk. She looked and looked. She looked at the teacher, she looked at the schoolboys and schoolgirls. She looked at the blackboard and at the pictures on the wall.
The children opened their bags and took out their pencils and notebooks. My sister opened her bag too. She took out her pencil and her notebook.
Then the teacher called all the children’s names. The children said: «Present» (здесь). But she did not call my sister’s name, because she was not a pupil. Then my naughty little sister stood up and said:
«I want a present (подарок), too.» Everybody laughed.
Then the teacher gave her some plasticine [‘plaestisi:n] (пластилин). My little sister made a red flower, and the teacher said it was very nice.
he teacher read us a story, and my sister listened, too. When the teacher asked questions about this story, all the children put up their hands. Nancy put up her hand. And she gave a good answer. The teacher said: «Your little sister is very clever.»
Then we drew pictures. I drew a house, a tree and a lake. But do you know what my sister drew?
She drew our teacher. Yes, she drew our nice teacher. She drew her with very little eyes and very long black hair, and a very big mouth.
«I like your picture,» said our teacher. «I like it very much.» Then we all went to the school yard and played there. We played ball. My little sister played ball, too.
Then we went to the classroom again. We read a story in a book, but my little sister could not read, so she fell asleep (она заснула). She slept till four o’clock when the lessons were over and we went home.
A.MnO2 1.Оксид бора
B.MgO 2.Оксид марганца(4)
C.V2O5 3.Оксид ванадия(5)
D. Na2O 4.Оксид натрия
E. B2O3. 5.Оксид магния
————————-
| A | B | C | D | E |
————————-
| | | | | |
————————-