Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Bio 20 > Echology > Flashcards

Echology Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Limiting Factors

A
  • Birth potential
  • capacity of survival
  • length of reproductive life
  • breed frequency
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Breed frequency

A

Number of times that a species reproduces in a year

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

Birth potential

A

Maximum number of offspring per birth

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

Capacity of survival

A

Number of offspring that reach the reproductive life

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

Length of reproductive life

A

The age of sexual maturity, and the number of years an individual can reproduce

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Carrying Capacity

A

The maximum population size that an ecosystem can maintain over an extended period of time

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

Population sizes -Limiting Factors

A
  • internal factors (biological)

* external factors (abiotic, biotic)

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

Law of minimum (Leibig’s Law)

A

The nutrient in the least supply limits the growth of the production

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

Law of Tolerance

A

Too much of sth is also harmful. Organisms survive within a particular range of an biotic factor

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

Abiotic (non-living)

A

Plants:
Soil type, moisture, humidity, temperature
Animals:
Temperature, water sources, shelter

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

Biotic (living)

A

1) competition for resources
2) predators
3) parasites

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

Competition for resources

A

Intraspecific: members of a same group
Interspecific: member of different species

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

Predators

A

Consumption of one organism by another

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

Parasites

A

One organism (the parasite) benefits from another (host)

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

Sample populations

A

A small portion of a population is taken and then the average is calculated
•transect~> moving species
•quadrant~> many section o the same size within an ecosystem are chosen, usually fir stationary species

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

Comunity

A

Multiple populations, same time, same area

17
Q

Ecosystem

A

The communities along with physical and chemical environment (biotic and abiotic compounds)

18
Q

Factors affecting ecosystems

A
  • density-independent: affects members of a population regardless of population density
  • density-dependent: affects members of a population because of population density
19
Q

Niche

A

The role that the species member plays in an ecosystem (like a job)

20
Q

Ecotone

A

The dividing area between two ecosystems

21
Q

Ecosystems Unbalanced factors:

A
  • hunting
  • deforestation
  • natural disaster
  • source of food dies out
  • fire
  • human influence ( building roads thru, pollution)
22
Q

Indicator Species

A

A species that is sensitive to small changes in an ecosystem that provides an early indication that sth is wrong within the system

23
Q

Toxonomy

A

The practice of classifying living things

24
Q

Kingdoms

A

Aristotle classified organisms as either plant or animal. Hackle added the third kingdom “protista”

25
Q

6 kingdoms:

A

1) platae
2) animalia
3) archaebacteria
4) fungi
5) eubacteria
6) protista

26
Q

3 domains:

A

1) bacteria
2) eukarya
3) archaea

27
Q

Archeabacteria

A

Live in extreme environments (extreme hot/cold)

28
Q

Eubacteria

A

Oldest known living things

29
Q

Fungi

A
  • break down organic matters
  • immobile
  • do not fossilized
  • include mushrooms
30
Q

Protista

A
  • multicellular and single celled
  • subdivided: protozoans algae
  • include diatoms, algae, ameobas
31
Q

Animalia

A
  • primarily multicellular

- include sponges to insects to humans

32
Q

Plantare

A
  • mostly single complex cells
  • have roots and shoots
  • produce energy via photosynthesis
  • include mosses to pine trees
33
Q

Classification

A

Carl Linaeus ~> the classification system based on physical and structural features

34
Q

Linnaeus’s groups:

A
  • phylum
  • class
  • order
  • family
  • genus
  • species
35
Q

Habitat

A

An area or place in biome with a specific set of characteristics in which a species like.

36
Q

Range

A

Geographical area where the population of species is found

37
Q

Species

A

Group of organisms that can interbreed and produce fertile offspring

Bio 20 (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions