Variety of Life & Classification

Question 1

Invertebrate definition

Answer 1

No backbone

Question 2

Vertebrate definition

Answer 2

Have backbone

Question 3

Annelids

Answer 3

• Body in ringed segments

e. g. Earthworm

Question 4

Arthropod

Answer 4

• Hard exoskeleton
• Jointed legs
• A part of the arthropod group

Question 5

Insects

Answer 5

• 6 legs
• Body in sections ( head, thorax, abdomen)
• pair of antennae
• May have wings
  e. g. Ants, beetles, butterflies

Question 6

Crustacean

Answer 6

• Around 10 legs

e. g. Crab, lobster

Question 7

Arachnids

Answer 7

• 8 legs

e. g. Spiders, scorpion

Question 8

Myriapod

Answer 8

• Many legs

e. g. Centipede, millipede

Question 9

Mollusc

Answer 9

• With or without shell
• Soft body
  e. g. slugs, snails, octopi

Question 10

Reptile

Answer 10

• Dry scales

e. g. Snake

Question 11

Amphibian

Answer 11

• Smooth, moist skin

e. g. Frog, salamander

Question 12

Mammal

Answer 12

• Hair

e. g. Dolphin, Human

Question 13

Birds

Answer 13

• feathers

e. g. magpie

Question 14

Fish

Answer 14

• Wet, loose scales

Question 15

Plants

1. How many cells are there?
2. Cell wall?
3. Nutrition?
4. Movement?
5. Nervous system?

Answer 15

1. Multicellular
2. Cellulose cell wall
3. Gain nutrition by photosynthesis (make own food from carbon dioxide + water, using chlorophyll to harness light)
4. Cannot move from place to place
5. No nervous system

Question 16

Animals

1. How many cells?
2. Cell wall?
3. Nutrition?
4. Nervous System?
5. Movement

Answer 16

1. Multicellular
2. No cell wall
3. Gain nutrition by eating and digesting food
4. Have a nervous system
5. Move from place to place to find a mate, food, shelter, or to escape danger

Question 17

Fungi

1. How many cells?
2. Cell wall?
3. Nutrition?
4. Body organisation?
5. True or false: Fungi secrete digestive cellulites on to food and absorb soluble products
6. How does bread rise?

Answer 17

1. Multicellular
2. Chitin cell wall
3. Extracellular division
4. Organised into a mycelium made of thread-like structures called hyphae
5. False. They secrete extracellular enzymes
6. Due to carbon dioxide gas given off by yeast as it respires sugar.

Question 18

Bacteria

1. Cells?
2. Cell wall?
3. DNA?
4. What diseases can bacteria cause?
5. What food can bacteria make?

Answer 18

1. Microscopic single celled organisms
2. Murein cell wall
3. Circular chromosome of DNA
4. Tuberculosis and food poisoning
5. Yoghurt and cheese

Question 19

Protoctists

1. Cells?
2. Features?
3. True or false? Some have chloroplasts and are more like plants. If true, give an example
4. Give an example of a pathogen and give the name of the parasite

Answer 19

1. Microscopic single celled
2. some have features like an animal e.g. amoeba
3. True, for example, amoeba
4. Malaria, it’s parasite is plasmodium

Question 20

Virus

1. Size?
2. True or false? Parasitic
3. Reproduction?
4. Cellular structure
5. Give examples

Answer 20

1. Smaller than bacteria
2. True
3. Reproduce inside living cells
4. No cellular structure just genetic materical wrapped in a protein coat
5. Influenza, Coronavirus