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Lesson 3. Q.1: What is the scientific term of:
Q.1: What is the scientific term of:
1- The phenomena of hiding animals in burrow or bury themselves in mud in winter. [-----------------------------------]
2- The phenomena of hiding animals in humid burrows in order not to be affected by rising of temperature. [-----------------------------------]
3- The insect that looks like the plant leaves exactly in colour and shape of wings. [-----------------------------------]
4- An insect that looks like the branches of plants to be hardly discovered by their enemies. [-----------------------------------]
5- The ability of some living organisms to be hidden from their enemies or to capture the preys in the predator species. [-----------------------------------]
Q.2: Give reasons for each of the following:
1- Perishing of some living organisms and continuity of others.
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2- Some birds seek to migrate from cold and polar regions.
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3- Roots of aquatic plants are weak, and their leaves are ribbon like.
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4- Stem of aquatic plants are elastic, contain air chambers.
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5- Roots of desert plants vertically in the soil for great depths.
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6- Leaves of the desert plants are small, have ribbon like and have little numbers of stomata.
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7- Stems of desert plants are short, rich in chloroplasts.
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8- Some animals colour themselves with the dominant colours in the environment.
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9- The leaf insect looks like the plant leave exactly.
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10- The stick insect looks like the branches of plants.
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11- Chameleon colors itself with the dominant colors of the environment.
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12- Camel has a plentiful number of lacrimal glands and two raws of long eyelashes.
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13- Camel's ear is small and covered with dense hair from inside.
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14- The upper lip of the camel's mouth is forked and the enamel is strong.
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15- The upper lip of the camel's mouth is forked and the enamel is strong.
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16- The presence of hump in the camel's body.
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17- Camels are rarely sweated.
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18- Some animals undergo hibernation.
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19- The thickness of camel's fur differs at different body regions.
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20- Elodea plant has a sessile (neckless) leaves.
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21- Some desert plant's leave are modified into spines.
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22- The leaves of cactus plants are surrounded with a waxy layer.
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Q.3: Choose the correct answer:
1- Birds migrate to ---------------------- [digest – reproduce – respire]
2- The --------------- are reduced into spines in opuntia plant.
[Stems – leaves – roots]
3- The stems of desert plants are mostly -------------
[Short and weak – strong and tall – short and strong]
4- The stem of Elodea plant is --------------- [strong – elastic – both]
5- -------------- is an example of animals that undergo hibernation.
[Desert snail – jerboa – frog – all the previous]
6- Water is stored in the leaves of ------------------ plant.
[Elodea – cactus – calamagrostis – opuntia]
7- Leaves are reduced into spines in the ------------------- plant.
[opuntia – cactus – wheat – Elodea]
8- Camel stores the food in its hump in a form of -------------------
[Proteins – fats – water]
Q.4: Compare between Elodea plant and calamagrosits plant from:
| Point of comparison | Elodea | calamagrosits |
| The environment | -------------------- | -------------------- |
| Roots | -------------------- | -------------------- |
| Leaves | -------------------- | -------------------- |
| Stem | -------------------- | -------------------- |
Q.5: Mention an example that clarifies:
1- Camouflage: --------------------------------------------------------------------------
2- Hibernation: --------------------------------------------------------------------------
3- Aestivation: ---------------------------------------------------------------------------
Q.6: What happen in the following cases:
1- Absence of air chambers in the elodea plant's stem.
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2- The disability of some living organism to adapt with the environment.
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Lesson 1
Q.1: Write the scientific term:
1- Organisms that can't bee seen with naked eyes. [---------------------------]
2- It is a branch of biology searching the similarities and differences among living organisms. [---------------------------]
3- The plants in which their seeds are formed inside cones not inside apericarp. [---------------------------]
4-Plants that can’t be distinguish into roots, stems or leaves.
[---------------------------]
5- Invertebrate animals that characterized by a type of legs known as jointed legs. [---------------------------]
6- Arthropods that have 3 pairs of joint legs. [---------------------------]
7- Arthropods that have 4 pairs of joint legs. [---------------------------]
8- Arthropods that have more that 4 pairs of joint legs. [-------------------------]
9- Mammals that have one pair of incisors in each jaw. [-------------------------]
10- Mammals that have two pairs of incisors in the upper jaw and only one pair in the lower jaw. [---------------------------]
11- The scientist who had considered the species as fundamentals of a natural classifying system. [---------------------------]
12- A group of more similar living organisms shape that can reproduce to give birth of new fertile individuals. [---------------------------]
13- Small terrestrial plants that are reproduce by formation of seeds.
[---------------------------]
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