Ecosytems

Question 1

Define Abiotic Factors

Answer 1

Refers to those environental factors that are not alive, the non compounds of the enviroment e.x water, sunlight

Question 2

Photo synthesis equation

Answer 2

CO2 + H2O -> O2 + C6 H12 O6 (glucose)

Question 3

Define detrivore

Answer 3

Animals that release enzymes to break down organic matter to eat ex. Dung beatle

Question 4

How does temperature effect plants

Answer 4

Effects rate of plant growth, metabolic rate of organism and resistance in organisms.

Question 5

What level on the pH scale is acid

Answer 5

0

Question 6

Define commensalism

Answer 6

One partner benefits and the other is not affected (+,0)

Question 8

Define Biotic factors

Answer 8

Enviromental factors which are alive

Question 10

Define Mutualism

Answer 10

Both partners benefit from the relationship (+,+)

Question 11

Respiration equation

Answer 11

O2 + C6 H12 O6 (glucose) -> CO2 + H2O

Question 12

Water effects on ecosystems ?

Answer 12

• Solubility of dissolved oxygen
• rate of plant growth
• metabolic rate of organisms
• resistense in organismic

Question 13

What can you use to measure turbudity of water

Answer 13

Sechi Disk

-a string you lower into the water and mark when you up

Question 14

Define intercompetition

Answer 14

Competition between different species

Question 15

At level on the pH scale is neutral

Answer 15

7

Question 16

What symbiotic relationship is represented by this +,-

Answer 16

Parasitism

Question 17

+,+

Answer 17

mutualism

Question 18

+,-

Answer 18

Parasitism

Question 19

Name 4 things animals compete for

Answer 19

Food
Water
Space
Mates

Question 20

What is a nich?

Answer 20

A nich is the position that a living thing occupies in a community

• animals overlapping niches compete
• competition results in winners and losers

Question 21

What do plants fight for

Answer 21

• light
• minerals
• water
• space

Question 22

What species is the human

Answer 22

Homosapians

Question 23

What is the study of ecosystems?

Answer 23

Ecology

Question 24

Name the three types of organisms found in ecosystems inorder of the food chain

Answer 24

Producers -> consumers -> decomposers

Question 25

Plant organisation flow chart

Answer 25

Molecules -> cell -> organisms -> population -> biosphere

Question 26

What is an autotroph

Answer 26

organism that can make their own food

Question 27

What is a Hetotroph

Answer 27

An organism that cannot make its own food and has to eat food to survive

Question 28

Flow chart for phoem

Answer 28

Nutrients -> translocation -> phloem

Question 29

Flow chart of xylem

Answer 29

Water -> transpiration -> xylem

Question 30

Where does transipration occur

Answer 30

In the xylem

And it involves water

Question 31

What effects transipration

Answer 31

Humidity
Wind
Temperature
Type if plant

Question 32

What is tropism

Answer 32

A growth movement in response to a stimulus.

Plants grow towards or away from a stimulus

Question 33

what is a growth movement towards a stimulus

Answer 33

Possitive tropism

Question 34

What is growth away from a stimulus

Answer 34

Negetive tropism

Question 35

Plants response to light

Answer 35

Phototropism

Question 36

Plants response to water

Answer 36

Hydrotropism

Question 37

Plants response to gravity

Answer 37

Geotropism

Question 38

What are auxins

Answer 38

Hormone of plant produced in the tip of the shoot. When they sense a light source they move away from it. This causes cells on the other side of the plant to move and grow towards the light.

Question 39

Name types of Symbiotic Interactions

Answer 39

• Predation / parasitism
• mutulism
• commensalism

Question 40

What is predation/ parasitism?

Answer 40

One partner benefits from the relationship and the other is harmed (+,-)

Question 42

What level on the pH scale is Alkaline Base

Answer 42

14