امتحان نهائي الجزء الورقي العلوم المتكاملة الصف السابع انسبير الفصل الدراسي الأول 2023-2024

19 نوفمبر، 2024

120 2 دقائق

Consider the cross section of leaf shown in the figure below. Answer the following questions

?a. What is it called the waxy cover that is produced by the epidermal layer

…………………………………………………………………………………….

?b. What type of leaf cells contain the chloroplast

…………………………………………………………………………………….

c. What is the reaction happening in the chloroplasts? Fill the blanks
…………………… + …………………………. Carbon dioxide + ………………………. Light

.Using the water cycle, in the figure below to answer question A & B

A. Give the correct names for the processes (L 2, & 3) in the water cycle according to the numbering scheme in the figure

1. . ………………………………….. .
2. . ………………………………….. .
3. . ………………………………….. .

? B. If process number 4 did NOT occur, how it would affect the water cycle

……………………………………………………………………………………………

Using the below graph of population growth and carrying capacity vs. time, answer the following questions

……………………………………… ? a. What does symbol Y represent

. b. Give an example on symbol X ? …………………………………….. ..l3

c. Draw a line on the following grid sheet indicating a population reaching its biotic potential.

Compare between the Ecological Successions shown in the figures by filling the table below

Ecological Successions B	Ecological Successions A	Compare according to
………………………….	………………………….	Name
………………………….	………………………….	Presence of life in step 1
………………………….	………………………….	Area (new I old)
………………………….	………………………….	Time required to develop a climax community

.A. Regarding the biodiversity seen in the two figures below, answer the following questions

i. Assign the number of the figure that shows high biodiversity and the one that shows low biodiversity

……………………. High Biodiversity
……………………. Low Biodiversity

ii. What type of biodiversity is seen in figure ? 2

………………………………………………………………………………………..

iii. Give one method on how to protect biodiversity from threats that it faces in
an ecosystem

………………………………………………………………………………………..

C. Using the model of energy pyramid shown below, answer the following questions accordingly

(i) Is the following diagram considered a correct representation for the energy in the model above? Explain your answer

……………………………………………………………………

(ii)? What happens if the third trophic level (hawks) disappeared from the ecosystem

……………………………………………………………………

…………………………………………………………………..

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19 نوفمبر، 2024

120 2 دقائق