[غريبـ فيـ زمنـ عجيبـ]

نموذج 9 بالحل






Question of chapter : Training 1

1.Which of the following statements about theEcosystem is true?

all the environments on Earth. () all the organisms living in a particular area. () the array of organisms living in a particular ecosystem. () all the individuals of a species only interbread with each other within a specific area. () the array of organisms (same populations) living in a particular ecosystem




--------------------------------------------------------------------------------
2.All of the following are living things except:

. Zygot. () Bacteria. () plants. () carbohydrates. () paramecium




--------------------------------------------------------------------------------
3.--------- is an ability to maintain an internal environment consistent with life

. () order. () regulation. () evolutionary adaptation. () response to the environment. () growth and development




--------------------------------------------------------------------------------
4.Biology blends two main scientific approaches; one of them is the _______________ which requires proposing and testing of hypotheses.

. () hypothesis- based science. () discovery science. () theoretical science. () experimental science. () None of the above




--------------------------------------------------------------------------------
5.Sodium is a ------------, .and chloride is a -----

poisonous gas --------- m e t a l. () liquid ------------ m e t a l . () m e t a l ------------- liquid. () m e t a l ------------- poisonous gas. () poisonous gas --- liquid






--------------------------------------------------------------------------------
6.Water has many different properties for life because of its _________.

. () viscosity. () electronegativity. () polarity. () unpolarity. () arrangement



--------------------------------------------------------------------------------
7.A solution with pH of 14 is

. () most acidic. () most basic. () low basic. () low acidic. () neutral




--------------------------------------------------------------------------------
8.Amino group consists of

a hydrogen atom bonded to an oxygenatom. () a carbon atom linked by a double bond to an oxygen atom. () a carbon atom bonded to a hydroxyl group and double-bonded to an oxygen. a nitrogen atom bonded to two hydrogen atoms and a carbon skeleton. () a phosphorus atom bonded to four oxygen atoms




--------------------------------------------------------------------------------