Classification and biodiverisity Flashcards
(42 cards)
1
Q
two groups we classify plants into
(examples)
A
- Non flowering
-mosses
-fern - Flowering
-cactus
-roses
2
Q
what are the two names given to each animal?
A
- Common name
- Scientific identification
3
Q
why do organisms/animals have a scientific identification?
A
- To avoid confusion and duplication caused by common names
4
Q
what is the binomial system?
A
- Made up of latin words
- 2 parts
1. Genus
2. Species
5
Q
why is the binomial system useful for scientists?
A
- Helps them accurately identify individual species
6
Q
how do scientist classify organisms?
A
- Through morphological features and DNA analysis
7
Q
what does it mean when scientist classify organisms into morphological features?
A
- Look at the structure of the body
8
Q
what is DNA analysis?
A
- an instruction book to the cells
9
Q
What are the 5 kingdoms of life?
A
- Animals
- Plants
- Bacteria
- Fungi
- Protists
10
Q
which 3 of the of the 5 kingdoms is multicellular?
A
- Animals
- Fungi
- Plants
11
Q
what are the Morphological features of the kingdom of animals?
A
- Multicellular organisms
- Need to eat to get their nutrients
12
Q
what are the Morphological features of the kingdom of plants?
A
- Multicellular organisms
- use light energy from the
sun - Produce their own food
- Through photosynthesis
13
Q
what are the Morphological features of the kingdom of Fungi?
A
- Multicellular organisms
- digest food outside the
body - then absorb the nutrients
14
Q
what are the Morphological features of the kingdom of bacteria?
A
- unicellular organisms
- cells have no nucleus
- DNA is free in the cytoplasm
15
Q
what are the Morphological features of the kingdom of protists?
A
- organisms contains one nucleus in the cell
- made up of one cell
16
Q
what is Taxa?
A
- helps classify organisms
17
Q
what are the different groups within taxa?
A
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
- Species
18
Q
What does the group Phylum indicate?
A
- If an animal is a vertebrate or invertebrate
19
Q
What does the group Class indicate?
A
- If an organism is a mammal or not
- a mammal is an organism with similar ways of breeding
20
Q
Why might animals adapt their behaviour?
A
- to help them survive in their respective environment
1. hunting at night
2. hunting in packs
3. burrow
4. migration
5. Hibernation
21
Q
Some adaptions of a may fly nymph?
A
- wings to fly
- Gills to obtain oxygen from water
- Large eyes to see food
- eggs lay dormant until environmental conditions are favourable
22
Q
Adaptations of a Rat tailed maggot
A
- Tails help them dive deep to get food
- Love Polluted Water
23
Q
Adaptations of a Camel
A
- Humps store fat and convert it into water
- Wide feet to stop sinking in sand
- long legs to stop sweating and dehydration
- Leathery lips to help chew cactus
- long eyelashes to protect their eyes from the sand
- live in hot and dry environment
24
Q
Adaptation for cactus
A
- Spines to protect from predators
- Store water in spines they expand to hold more
- They perform photosynthesis in stem
- Long roots to absorb water
- No leaves
25
what do all living things compete for?
- Food and water
- light
- minerals
- basic needs of energy and environmental resources
26
what can competition effect?
-population size
- pollution
- preditation
27
what do all living things compete for?
- food and water
- light
- basic needs
- environmental resources
- minerals
28
difference between interspecific competition and intraspecific competition?
interspecific = competition between species
intraspecific = competition between members of the same species
29
what do plants and animals compete for to survive
Plants
- Light
- Pollenators
- Minerals
Animals
- Shelter and food
Both
- Space
- Water
_ Mates
30
definition of biodiversity
- The variety of different species and numbers of individuals of those species in an area.
31
importance of biodiversity
provides
- industrial materials
- food/potential food
- new medicines
-also important for human well being.
32
name 4 products an their plant of origin
asprin = willow or boswelia
chirps chirps = cricket flower
avani biodegradble carrier bags= casava
sugar = sugar cane
33
how to analyze the total number of organism?
total number of organism = total number in a sample x the total area divided by total sample area
34
stages of using a quadrat
1. throw at random to avoid bias
2. count organisms in the quadrat
3. calculate mean number of organisms
4. complete previous equation
35
how can we improve accuracy while using quadrats
use larger sample size
36
use of transects
- used to investigate the change in distribution of organisms from one habitat to another
37
steps to the capture - recapture
- animals are trapped
- mark in a harmless way
- release them
- traps are reused days later
- count the marked and unmarked animals
- complete previous equations
38
what are the assumptions made using the capture recapture method
- that the marking does'nt effect the chances of survival
- none of the population dies
- no imigration or emigration
39
what is the equation too calculate population size
number in first sample x number in second sample
over
number in second sample previously marked
40
what is an alien species
- a species that were introduced into areas they dont naturally occur
41
what are some problems that can arrive due to alien species
- native species may not be able to compete
- some can become invasive
- grow faster than the native species which could upset the natural ecosystem
42
