اختبار الكتروني وحدة Environmental balance

1
The …….can simulate the colour of the surrounding environment .
2
The animal which devours another animal is called ……………………..
3
In food relationship between lion and deer , the lion is a ………..
4
The devoured animal by another animal is known as ………………
5
The …….ejects a black fluid in the surrounding water when attacked by an enemy.
6
All the following are living organisms of an ecosystem except the
7
Cutting trees to build houses causes the environmental ………….
8
Introducing rabbits into an island that is a suitable environment with much food and no enemies will lead to the environmental……..
9
Which of the following is a very large ecosystem
10
All the following are the components of the ocean ecosystem except