PART 1 Flashcards

1
Q

What is ecology?

A

when wanting to learn of the communities, population, and biotic and abiotic factors that influences each other

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2
Q

What is an ecologist?

A

A scientist that studies the interaction of organisms and their environment

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3
Q

What is an ecological niche?

A

A specific part of a habitat that an organism occupies

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4
Q

What happens when a niche overlap with each other?

A

This leads to competition within the organisms in that habitation (Fight for food, resources)

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5
Q

List the levels of Hierarchy (Hi-rr-arky) in order

A

Individual, population, community, ecosystem, biome, biosphere

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6
Q

The first level of Hierarchy, individual, ecologists often focus on the learning about the abiotic (non-living) environment affects individual..

A

behaviour and physical features

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7
Q

The second level of Hierarchy, population is a..

A

group of individuals of the same species living in the same area at the same time

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8
Q

The third level of Hierarchy, communities are..

A

different populations interacting with one another (could be the same or different species)

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9
Q

The fifth level of Hierarchy, the ecosystem..

A

surrounds all living and non-living parts of the environment

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10
Q

The sixth level of Hierarchy, the biosphere is..

A

the largest possible ecosystem. A place that allow different organisms to reproduce and survival (there are many on earth)

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11
Q

What is a climate?

A

the average long term weather conditions in a particular region

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12
Q

The earth has different temperature of heat in different places due to the earth heating..

A

unevenly

Land and water heat and cool at different rates (water tends to grasp on its energy leading it to remain at a hot temperature for long periods of time)

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13
Q

Due to earth heating unevenly, it affects..

A

the movement of the ocean and atmospheric currents (when water temperature is high, it tends to expand out more, when water temperature is low, it contracts).

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14
Q

What are the 2 factors that have an effect on the distribution (sharing) of living things?

A

Altitude and Latitude

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15
Q

In a terrestrial (on earth) ecosystems, precipitation (rain, snow, hail, etc) and temperature are the..

A

main predictors of diversity

As a result, diversity is positively correlated and ends near the equator

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16
Q

What are the 2 factors that are the main predictors of diversity in.a terrestrial ecosystem?

A

precipitation and temperature

17
Q

In a aquatic ecosystem, diversity can be predicted by..

A
vertical stratification (different levels to the earth). 
 - Example : the deeper you go in the ocean, the less diversity you will find (determined mainly by the presence of light (if it is visible))
18
Q

Abiotic and biotic components of an ecosystem can also l..

A

limit the growth of population

abiotic limiting factors:
Nutrients, sunlight, soil, access to water, temperature, wind, landscape and precipitation

19
Q

What is the 4 biotic (living) limiting factors?

A

InTRAspecific competition, inTERspecific competition, predation, parasitism

20
Q

One of the biotic limiting factors, inTRAspecific competition is when..

A

when individuals of the SAME species compete for limited resources (food, water, territory, mates)

21
Q

One of the biotic limiting factors, inTERspecific competition is when..

A

when individuals of DIFFERENT species compete for limited resources due to overlapping of niche.

22
Q

One of the biotic limiting factors, predation is when..

A

a predator feeds upon prey ( this is a limiting factor as it reduces population - if a prey disappears, so does predator due to reduced resources)

23
Q

One of the biotic limiting factors, Parasitism is when..

A

parasites infect and harm host but don’t usually kill them ( they limit the reproductive and survival ability of host )

24
Q

When classifying organisms, Taxonomy is the practice of..

A

classifying living things.

Ecologists use this method to have a consistent classification

25
Q

When classifying organisms, the old taxonomy method was to..

A

divide all living things into 5 kingdoms.

26
Q

The old taxonomy method was the divide all living things into 5 kingdoms, list them..

A

Monera, Protista, Fungi, Plantae, Animalia

27
Q

When classifying organisms, the new taxonomy method classify living things into 3..

A

major domains and subcategorize those into kingdoms

28
Q

There are levels of classification, list the 8 levels from least specific to most..

A

domain, kingdom, phylum, class, order, family, genus and species

29
Q

A Binomial Nomenclature is a naming system to..

A

classify species