Lesson 2
Q
.1:
Write the scientific term:
1- A modification in a living organism or its body structure or even the biological function of its organs to become more adapted to the environmental conditions. [-----------------------------]
2- The type of adaptation that studies the structure of one body organ.
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3- The ability of some organs and tissues to do a specific function.
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4- Activity of some animals in different times of the day. [-----------------------]
5- Birds that have sharp and strong crooked beaks to enable to tear the prey.
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6- Plants that have modified parts in order to pounce and digest the insects then absorb the nitrogenous substances that their bodies need.
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Q.2: Complete the following statements:
1- ----------------- and ------------------ are examples of insectivorous plants.
2- Hawks have ---------------- and ----------------- crooked beaks to enable to tear the prey, while ducks have ------------------ beaks to filter the food from water.
3- Horse hoof ends with ---------------- to help the horse go through the rocky soil, while the camel pad ends with ------------------ to enable the camel go through hot desert sand.
4- Reasons of adaptation are -------------------, ------------------- & --------------
5- Types of adaptation are -----------------, ------------------ & -----------------
6- Adaptation of horse hoof is a ----------------adaptation, while migration of birds is --------------- migration.
Q.3: What is meant by each of the following?
1- Adaptation: ----------------------------------------------------------------------------
2- Structural adaptation: ----------------------------------------------------------------
3- Functional adaptation: ---------------------------------------------------------------
4- Behavioral adaptation: ---------------------------------------------------------------
5- Insectivorous plants: -----------------------------------------------------------------
Q.4: Say true () or false (x):
1- Secretion of sweat at high temperature of human body is considered behavioral adaptation. ( )
2- Migration of birds is considered as behavioral adaptation. ( )
3- The beaks of predatory birds are sharp and strong. ( )
4- The fingers of the hawks and vultures are strong and sharp. ( )
5- Water birds have palm legs. ( )
6- Ducks and geese have wide indented beaks. ( )
7- Dieonea, Drosera and halophila are examples of insectivorous plants. ( )
Q.5: Give the scientific reason for each of the following:
1- Some plants seek to eat insects.
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2- Legs of some birds are palm.
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3- Beaks of some birds are wide indented.
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4- Legs of some birds are long and thin ending in thin fingers.
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5- Beaks of some birds are long and thin.
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6- Hawk has three front fingers and back one.
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7- Birds have fingers end in strong and sharp claws.
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8- Beaks of predatory birds are sharp and strong.
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9- The front limbs of monkeys are modified into long arms.
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10- The front limbs of bats are modified into wings.
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11- The front limbs of dolphins are modified into peddles.
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12- The horse hoof ends with a strong solid end.
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13- The camel pad ends with thick flat one.
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Q. 6: Complete the following diagram:
