Biodiversity

Question 1

Species diversity

Answer 1

number of different species within an ecosystem within an ecosystem

Question 2

Genetic diversity

Answer 2

range of genetic characteristics within a single species

Question 3

Hot spot

Answer 3

small
Numerous endemic species
large number of endangered and threatened species.
Must contain 1500 species of vascular plants found nowhere else in earth
must have at least 70% of its native vegetation

Question 4

Biological species concept

Answer 4

species if can interbreed.

Question 5

Morphological

Answer 5

species based on their physical characteristics

Question 6

Phylogenetic

Answer 6

species that states species comprises the smallest group of individuals sharing a common ancestor

Question 7

Classification order

Answer 7

domain 
kingdom
phylum
class
order
family
genus
species

Question 8

7 biggest classes of Chordata

Answer 8

Ascidacea 
Chondrichthyes
Osteichthyes 
Amphibia 
Reptilia
Ava
Mammalia

Question 9

ascidacea

Answer 9

Hollow body
two openings
No head
notochord in larval stage 
(Sea squirt)

Question 10

Chondrichthyes

Answer 10

skeleton made of cartilage
No scales
no gill covering 
Lay eggs
highly developed sense of smell
Can detect electrical fields
(Shark)

Question 11

Osteichthyes

Answer 11

gills 
Sense vibrations in water
well developed eyes and smell
Soft fins reinforced by ray of spine
(Fish)

Question 12

Amphibia

Answer 12

moist, scaly skin
Live in freshwater or moist environment
(Frogs, toads)

Question 13

Reptilia

Answer 13

scaly, waterproof skin
lungs
Lay eggs
ectothermic (regulate heat from outside)
(Turtles, crocodiles)

Question 14

Ava

Answer 14

dont live in water
4 chambered heart
Lay eggs
feathers (protection, insulate cold)
wings
(Birds)

Question 15

Mammalia

Answer 15

4 chambered heart
Endothermic 
hair at some stage
Give birth to live young
breath air

Question 16

Four plant kingdom phylums

Answer 16

bryophytes
Pteridophytes
gymnosperms
Angiosperms

Question 17

bryophytes

Answer 17

Non-vascular
moist environment
Reproduce via spores

Question 18

Pteridophytes

Answer 18

seedless

Reproduce via spores

Question 19

gymnosperms

Answer 19

Non-flowering
reproduce via cones
Moist or dry conditions

Question 20

angiosperms

Answer 20

Flowers

Question 21

Biodiversity

Answer 21

number, variety and variability of organisms present in a specified area

Question 22

Vascular tissue

Answer 22

comprised of phloem and xylem

Tubes pf connected cells that transport nutrients, waters across plant

Question 23

non-vascular

Answer 23

Photosynthesis

materials come transported through osmosis

Question 24

9 most populated animal phylums

Answer 24

Chordata 
arthropoda 
echidnodermata
Nematoda 
annelida 
Molusca 
platyheminthes 
Cnidaria 
porifera

Question 25

Porifera

Answer 25

asymmetrical
multicellular
Sessile (adults live attached to something)
Body surrounds water filled space, but no body cavity.
(Sponges)

Question 26

cnideria

Answer 26

Radially symmetrical 
gastrovascular cavity with one opening acting as mouth and anus
Simple, net-like nervous system
aquatic environment
Nematocysts (stinging cells)
(jellyfish)

Question 27

nematoda

Answer 27

bilaterally symmetrical 
Cylindrical morphology 
body covered by round cuticle
No circulatory system
Alimentary canal with mouth and anus
moist environment
(Parasites - ringworm)

Question 28

platyhelminthes

Answer 28

bilaterally symmetrical 
Gastrovascular cavity with single opening acting as mouth.
3 layers of tissue
Body without cavity 
has blind gut (mouth, no anus)
Flat

Question 29

annelida

Answer 29

Bilaterally symmetrical 
more then two cell layers, tissues and organs
Body cavity 
nervous system
Closed circulatory system 
(Normal worm)

Question 30

Mollusca

Answer 30

bilateral symmetry 
Body without cavity 
has through gut (mouth and anus)
Use muscular foot for locomotion
open circulatory system with heart and aorta
(Snail, octopus, squid)

Question 31

Echinodermata

Answer 31

five rayed symmetry
Body has more then two cell layer, tissues and organs
thin epidermic covering an endoskeleton
Have short through gut (mouth and anus)
no head
(Sea urchins, sea stars, sea cucumbers)

Question 32

Arthropoda

Answer 32

bilateral symmetry 
Segmented 
hard exoskeleton 
Through gut (mouth and anus)
joined appendages (body parts attached to main trunk)
(Lobster, butterfly, spider)