Chapter 1
Final Revision Model Answer
1-Complete the following:
1. Their body temperature changes according to the temperature of the surrounding.
2. Feathers
3. Mammals
4. Arthropods
5. Clams
6. Spores
7. Aren't
8. keep
9. Arthropod
10. Clams, snails, slugs,squids.
11. Segmented
12. Hair or fur.
2-State (T) OR (F):
1. (F)
classified into plants, animals, archeabacteria, eubacteria, protists, fung
2. (F)
by gills
3. (t)
4. (t)
5. (f)
they are found in the digestive system of animals to digest food.
6. (f)
they may be spirals. Rods, spheres.
7. (t)
8. (t)
9. (f)
all are invertebrates.
10. (t)
11. (t)
12. (f) fishes are
the class vertebrates that have only water living organism.
3-Whatis the function of:
1. Breathing–passing oxygen to the body parts.
2. Dig tunnels in the soil-help aeration-make it fertile.
3. Protect a very important set of nerves in the spinal cord.
4. Breathing.
5. Protection
6. Making seeds
7. Help in performing photosynthesis.
4-Choose the correct answer:
1. Non vascular
2. Multicellular
3. do
4. This question is cancelled
5. Arthropods
6. Haven't
5-Answer the following questions:
1. Presence
of gills ,soft scales ,the only group of vertebrates that has only water living organism.
2. Astheir life cycle include a great change in the appearance
3. Cold blooded animals are animals that change their body temperature according to the
surrounding like fish & amphibians but the warm blooded animals don’t such as birds and mammals.
4. In that they have similar lungs and stomach, also have the same arrangement of eyes, nose and mouth. reptiles are similar to mammals in their life cycles ,their young look very much their parents and they are both vertebrates.
5. Both are kinds of life cycles
that envolves changes but in the complete metamorphosis it envolves great big changes in shape and the adult is so different from the organism that is newly hatched from the egg.
6-Give reason:
1. For protection till it changes to the adult form.
2. Protection.
3. Their body is divided into separated parts and also they have jointed legs.
4. As they have hard scales on their bodies while birds have feathers.
5. Because they can keep their temperature constant under all conditions.
Sun Jun 08, 2014 7:12 am by trudwin
Subject: Final Revision - Chapter 1 - Model Answer 
