Communities/organisms/distribution and abundance (ecology)

Question 1

Community

Answer 1

A collection of different populations that are independent in a habitat.

Question 2

Stable community

Answer 2

Communities where a number of species and the population size stays relatively constant

Question 3

Individual

Answer 3

One organism and also one type of organism

Question 4

Population

Answer 4

Group of individuals that all belong to the same number of species/occupy habitats

Question 5

Ecosystem

Answer 5

Interaction of community of living organisms with the non living parts of their environment

Question 6

Biome

Answer 6

Group of ecosystems that share similar climates and typical organisms

Question 7

Biosphere

Answer 7

The volume of the earths surface where organisms can be found

Question 8

Interdependence

Answer 8

The idea that everything in nature is connected to and depends on every other thing

Question 9

Biotic factors

Answer 9

Are living factors

Question 10

Abiotic factors

Answer 10

Are non living factors

(Water and minerals in soil

Question 11

Distribution

Answer 11

Where particular types of organisms are found within an environment

Question 12

Examples of how animals and plants interact with each other

Answer 12

Feeding, pollination, predation, building nests and shelters, nutrient recycling

Question 13

How do ecologists measure abundance

Answer 13

Using quadrants and transects

Question 14

Random sampling

Answer 14

Used to compare the distribution of the same organisms in different habitats using a quadrant. To count the number of species in an area

Question 15

Quadrant

Answer 15

Can be thrown randomly backwards over the shoulder

To make sure the results are valid is by sampling multiple times in different places to get a accurate result

Question 16

Transect

Answer 16

Another way of of measuring the distribution of organisms(systematic sampling), not random, to see a change in species distribution in a line

Question 17

Habitat

Answer 17

Is the environment in which the an organism lives

Grassland, sea, rainforest, desert

Question 18

What are the 4 biotic factors ?

Answer 18

Availability of food
New predators
Competition
New pathogens

Question 19

What are the 7 abiotic factors ?

Answer 19

Light intensity (for photosynthesis)
Temperature 
Water
pH and mineral component 
Wind intensity 
Carbon dioxide and oxygen

Question 20

Oxygen is needed for aerobic respiration

Answer 20

True