Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Chemistry > Ecology > Flashcards

Ecology Flashcards

(44 cards)

Start Studying
1
Q

What is ecology

A

Ecology is defined as the study of the interactions between organisms and their environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Give 4 examples of an abiotic factor

A

Rocks, soil, water, air,

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Give 4 biotic factors

A

Bacteria fungi plants and animals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is habitat

A

We’re organisms live

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the levels of ecological organization?

A
  1. Individual
  2. Population
  3. Community
  4. Ecosystem
  5. Biome
  6. Biosphere
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are 4 things needed in a habitat

A

Food water shelter and space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is a niche

A

An organisms role or job that it does in its community

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a heterotroph

A

Consumers and decomposers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a autotroph

A

Chemosynthetic and photosynthetic (basically producers)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a decomposer

A

An organism that breaks down organic materials

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is a consumer

A

An organism that eats other organisms for energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is a producer

A

A organism that uses the suns energy to make food

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Why are decomposers important

A

They break down dead bodies and poop so they don’t pile up

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Give an example of a primary consumer

A

Grass hoppers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Give an example of a secondary consumer

A

A frog

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Give an example of a tertiary consumer

A

Snake

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Give an example of a quartinary consumer

A

Eagle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Why is the transfer of energy and matter in a food chain only about 10% efficient?

Study These Flashcards
A

90% of the energy is given off by the organisms ( usually as heat)

19
Q

What is DDT and why is it bad

Study These Flashcards
A

DDT was one of the first and most powerful insecticides developed. DDT is very bad because it takes a very long time to breakdown so it killed lots of living organisms.

20
Q

What is the equation for photosynthesis?

Study These Flashcards
A

Water+carbon dioxide +energy->sugar + oxygen

And cellular respiration is the opposite

21
Q

What are legumes and why are why important

Study These Flashcards
A

Legumes are plants with bacteria nodgules that fix nitrogen. Farmers take advantage of legumes because they put legumes in one section of a farm and it will produce nitrogen then they move it so the next thing that goes in that place they will have nitrogen

22
Q

What is the carbon cycle?

Study These Flashcards
A

Main energy source for all food chains is the sun
The most important conversion is sunlight energy

23
Q

What is a zebra mussels ( invasive species)

Study These Flashcards
A
  1. Zebra mussels feed by filtering nutrients from the water
  2. They are numerous that there is little food left for other animals
  3. Costs lots
  4. Fewer small fish means fewer large fish
24
Q

What are cats ( invasive species)

Study These Flashcards
A

1.In the us there are about 30 million feral cats and 40 million more that are allowed to roam free
2. Kills almost 200 billion birds in the us per year

25
What is the carrying capacity?
The maximum population that the environment can support over long term
26
What is bacteria’s major role and why are there no arrows pointing to it?
Bacteria is a decomposed so it completes the food chain. It breaks down organic materials returning nutrients for the producers. And would require to many arrows
27
What is eutrophication?
Is an increase in chemical nutrient containing nitrogen or phosphorus in an ecosystem. This results in excessive amount of plant and algae then die and decay. This uses oxygen in the water and can kill fish, and other populations
28
What are 3 examples of soil pollution?
1. Erosion- poor land use practices include deforestation, overgrazing, and improper construction activities. 2. Soil acidification- acid rain or excess nitrogen fertilizer 3. Soil contamination- oil spills, etc
29
What is mutualism, commensalism, parasitism and an example
Mutualism is when both species are benefited and an example is otters and kelp Commensalism is when one species benefits, and the other is unaffected. An example is the cattle egret and cows Parasitism is when one species benefits, the other is harmed. An example is a mistletoe and tree
30
What are 3 factors that will determine carrying capacity?
1. Competition 2. Diseases 3. Predation
31
What are the 4 factors that determine biotic potential?
1. Birth potential 2. Procreation 3. Capacity for survival 4. Length of reproductive cycle
32
What is biotic potential?
The maximum number of offspring that a species Could produce if resources were unlimited
33
What are 5 factors of a population increase/decrease
1. Good light 2. Correct temperature 3. Sufficient food 4. Few parasites and diseases 5. Few predators Decrease is the opposite.
34
What is the greenhouse effect
The process were heat is trapped near the earths surface by substances know as greenhouse gases
35
What is water turbidity and the problems caused by it?
Water turbidity is the clarity of a liquid Problems: 1. Blocks light and distrusts plant growth. 2. Clogs the gills of some fish species 3. Interferes with the effectiveness of water chlorination
36
What is thermal pollution?
Thermal pollution is When water is transferred to a power plant or a factory and the warm water comes back into a lake or a river the warm water causes algae and plant growth. When the algae and plants decompose (and warm water) this causes decrease of oxygen levels
37
What is biomass?
Biomass is renewable organic material that comes from plants and animals
38
Food,space and nutrients are examples of what?
Limiting factors
39
What is birth potential?
the maximum number of species that are born in ideal living conditions
40
What is capacity for survival?
The number of off spring that can reach reproductive age
41
What is procreation?
The number of times that a species reproduces each year
42
What is length of reproductive cycle
The age of sexual maturity. And the number of years the individual can reproduce
43
What are food chains on land and in water called
Terrestrial and aquatic
44
What is density dependent and independent factors?
Density dependent factors change when the population changes-food supply Density independent factor do not change when the population changes- weather

Chemistry (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions