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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. ---------------------------------------------------------------------------------------------- 2- Some birds seek to migrate from cold and polar regions. ---------------------------------------------------------------------------------------------- 3- Roots of aquatic plants are weak, and their leaves are ribbon like. ---------------------------------------------------------------------------------------------- 4- Stem of aquatic plants are elastic, contain air chambers. ---------------------------------------------------------------------------------------------- 5- Roots of desert plants vertically in the soil for great depths. ---------------------------------------------------------------------------------------------- 6- Leaves of the desert plants are small, have ribbon like and have little numbers of stomata. ---------------------------------------------------------------------------------------------- 7- Stems of desert plants are short, rich in chloroplasts. ---------------------------------------------------------------------------------------------- 8- Some animals colour themselves with the dominant colours in the environment. ---------------------------------------------------------------------------------------------- 9- The leaf insect looks like the plant leave exactly. ---------------------------------------------------------------------------------------------- 10- The stick insect looks like the branches of plants. ---------------------------------------------------------------------------------------------- 11- Chameleon colors itself with the dominant colors of the environment. ---------------------------------------------------------------------------------------------- 12- Camel has a plentiful number of lacrimal glands and two raws of long eyelashes. ---------------------------------------------------------------------------------------------- 13- Camel's ear is small and covered with dense hair from inside. ---------------------------------------------------------------------------------------------- 14- The upper lip of the camel's mouth is forked and the enamel is strong. ---------------------------------------------------------------------------------------------- 15- The upper lip of the camel's mouth is forked and the enamel is strong. ---------------------------------------------------------------------------------------------- 16- The presence of hump in the camel's body. ---------------------------------------------------------------------------------------------- 17- Camels are rarely sweated. ---------------------------------------------------------------------------------------------- 18- Some animals undergo hibernation. ---------------------------------------------------------------------------------------------- 19- The thickness of camel's fur differs at different body regions. ---------------------------------------------------------------------------------------------- 20- Elodea plant has a sessile (neckless) leaves. ---------------------------------------------------------------------------------------------- 21- Some desert plant's leave are modified into spines. ---------------------------------------------------------------------------------------------- 22- The leaves of cactus plants are surrounded with a waxy layer. ---------------------------------------------------------------------------------------------- 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:
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. ---------------------------------------------------------------------------------------------- 2- The disability of some living organism to adapt with the environment. ----------------------------------------------------------------------------------------------
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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