Ecology

0.0(0)
studied byStudied by 0 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/26

flashcard set

Earn XP

Description and Tags

Biology 1 Honors LAST TEST

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

27 Terms

1
New cards

Ecology

the study of interactions between organisms with eachother and their physical surroundings

2
New cards

Ecosystem

given physical areas (abiotic_ and the living organisms that inhabit that area (biotic factors)

3
New cards

Communities

collective terms for all organisms living in one ecosystem

4
New cards

Weather

the day to day conditiions of the Earth's atmosphere in a given area

5
New cards

Climate

the average year to year conditions of temperature and precipitation

6
New cards

What's a major factor in determining climate?

The angle at which sunlight hits the earth

7
New cards

What's the result of the unequal heating of the earth?

The drive of winds and ocean currents

8
New cards

Greenhouse Effect

The retaining of heat in the Earht due to a layer of gasses in the atmosphere such as (Carbon Dioxide) and (methane)

9
New cards

___ can be recycled but not ____

Nutrients, energy

10
New cards

Keystone species

An organism that helps define an entire ecosystem

11
New cards

Biomass

the total mass of organisms at one trophic level

12
New cards

10% Rule of Energy Transfer

when energy is passed from one trophic level to the next, only 10% of the energy will be passed on

13
New cards

Why is only 10% passed?

Energy is used to grow, maintain cellular balance, or keep warm, and not all organisms in one trophic level are eatenby another, and always some nergy is lsot during energy transfer

14
New cards

Biomagnification

An increase of toxic substance such as pesticide in the tissus of organisms in a food chain

15
New cards

Ecological succession

Start of a new community

16
New cards

Eco Suc: Primary

No life before

17
New cards

Eco Suc: Secondary

One community replaces another

18
New cards

Pioneer Species

Organisms that begin to colonize areas that did not have living things before like lichens

19
New cards

Climax Community

A stable collection of organisms in an area

20
New cards

Primary Productivity

the rate of an ecosystem at which organic matter is created by producers

21
New cards

Limiting Nutrients

Substances that limit the primary productivity like nitrogen or phosphorus

22
New cards

Process of the Nitrogen Cycle

  1. nitrogen fixation
23
New cards
  1. ammonification
24
New cards
  1. nitrification
25
New cards
  1. denitrification
26
New cards

nitrogen cycle

The transfer of nitrogen from the atmosphere to the soil, to living organisms, and back to the atmosphere

27
New cards

In depth process of nitrogen cycle

Some bacteria in the soil convert nitrogen gas into ammonia, other bacteria converts ammonia into nitrates and nitrites; producers use nitrates and nitrites to make protein; consumers eat producers and reuse the nitrogen to make their own proteins; organisms die- decomposers return nitrogen to the soil as ammonia