B7- Ecology Flashcards Preview

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Flashcards in B7- Ecology Deck (23):
1

What is a habitat?

The place where an organism lives.

2

Define a population.

All the organisms in one species, living in a habitat.

3

What is a community?

All the populations of different species in a habitat.

4

What is an environment?

The conditions surrounding an organism.

5

Define an ecosystem.

The interaction of a community of living organisms with the abiotic parts of their environment.

6

What 6 resources do plants compete for?

-light
-space
-water
-mineral ions from the soil
-seed dispersers
-pollinators

7

What 4 resources do animals compete for?

-territory/shelter
-water
-food
-mates

8

What is interdependence?

Species in a community depending on other species for things such as food, shelter, pollination and seed dispersal.

9

What is the term for species in a community depending on other species for things such as food, shelter, pollination and seed dispersal?

Interdependence.

10

What can interdependence mean when there is a change in an ecosystem?

It can have far-reaching effects.`

11

What are the 5 kingdoms of organisms?

-Prokaryotes
-Plants
-Animals
-Fungi
-Protocista

12

What is are abiotic factors?

Non-living factors which affect organisms.

13

What are biotic factors?

Living factors which affect organisms.

14

Name 7 abiotic factors.

-Humidity
-Light intensity
-Temperature
-Wind intensity and direction
-Soil pH and mineral content
-Carbon dioxide levels (plants)
-Oxygen level (aquatic organisms)

15

Name 4 biotic factors.

-New predators
-Availability of food
-Competition
-New pathogens

16

What is a stable community?

One where the populations don't fluctuate very much; they are in balance.

17

What are the three types of adaptation?

Structural
-Behavioral
-Functional (internal chemical reactions)

18

How are camels adapted to live in hot conditions?

-Long eyelashes
-Thin layer of fat
-Humps of fat that can be broken down into water
-Double eyelids
-Large surface area to volume ratio

19

How are animals that live in cold conditions adapted to their environment?

-Thick layer of blubber for insulation
-Low surface area to volume ratio

20

How are arctic animals adapted to their environment?

-White fur to camouflage against the snow
-Helps them sneak up on prey/hide from prey

21

Give an example of a behavioral adaptation.

Swallows moving to warmer climates during the winter.

22

Some microorganisms are adapted to live in very extreme conditions. What are these called?

Extremophiles.

23

Give examples of 3 conditions extremophiles can live in.

-High temperatures (volcanic vents)