Diversity P3

Question 1

Characteristics of Mammals

Answer 1

1. Have hair/fur as their outer covering
2. Suckle their young/ Produce Milk
3. Most give birth to young alive (except platypus which lays eggs)
4. Breathes through lungs
5. Warm-blooded

Question 2

Characteristics of Living Things

Answer 2

1. Grow
2. Respond to Changes in their Environment
3. Need air, food and water to survive
4. Reproduce

Question 3

Characteristics of Birds

Answer 3

1. Feathers as Outer Covering
2. Beak and a pair of Wings
3. Lay eggs (hard shells)
4. Breathe through Lungs
5. Warm-Blooded

Question 4

Characteristics of Fish

Answer 4

1. Scales as Outer Covering
2. Breathe through Gills
3. Most lay eggs, some give birth to live young (guppies, some sharks)
4. Most are Cold-Blooded

Question 5

Characteristics of Amphibians

Answer 5

1. Moist Skin as Outer Covering
2. Breathe through moist skin in water and lungs on land
3. Lays Eggs
4. Cold-Blooded
5. Amphibian Young (eg tadpoles) breathe through gills and develop lungs later in adulthood

Question 6

Characteristics of Reptiles

Answer 6

1. Scales as Outer Covering
2. Lays Eggs on Land
3. Cold-Blooded

Question 7

Characteristics of Insects

Answer 7

1. Hard Exoskeleton as Outer Covering
2. Six Legs & Two Feelers
3. Three Body Parts: Head, Thorax, Abdomen
4. Lays Eggs
5. Cold-Blooded

Question 8

Function of Roots

Answer 8

1. Anchors plant firmly to the ground
2. Takes up water and mineral salts from the soil

Question 9

Function of Stem

Answer 9

1. Holds the Plant Upright and Leaves towards the Sun
2. Contains the Phloem that transports food from the leaves to the rest of the plant
3. Contains the Xylem that transports water and mineral salts from the roots to the rest of the plant

Question 10

Function of Leaves

Answer 10

1. Traps sunlight for photosynthesis to make food for plant
2. Contains stomata for gas exchange

Question 11

Characteristics of Fungi

Answer 11

1. Grow in warm, moist and dark areas
2. Reproduce by spores
3. Feed on other organisms dead or alive

Question 12

Characteristics of Bacteria

Answer 12

1. They are microorganisms
2. They are decomposers (obtain food by breaking dead organisms into simpler substances)
3. Some bacteria are good (aid in digestion) while some are bad and cause illness

Question 13

Properties of Materials

Answer 13

1. Strength: withstand heavy loads without breaking
2. Flexibility: bend without breaking
3. Buoyancy/Float or Sink in Water
4. Waterproof
5. Degree of Transparency to Light: Opaque, Translucent, Transparent

Question 14

Types of Aquatic Plants

Answer 14

1. Fully Submerged (eg Hydrilla)
2. Partially Submerged (eg Cattails, Water Lily)
3. Floating (eg Duckweed)