Unit 7 - Behaviour and Ecology Flashcards Preview

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Flashcards in Unit 7 - Behaviour and Ecology Deck (8)
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1

Two steps to show physiology's role in ringdove productive behavior

1. Male begins courting; bowing and cooing
2. Testosterone readies male for this behaviour
3. Sight of male doing this causes females pituitary gland to produce FSH
4. Causes her ovaries to produce eggs and release oestrogen to bloodstream
5. Male & female construct a nest and copulate
6. Progesterone in both sexes causes birds to incubate the nest
7. Prolactin causes crop to grow

2

One example of innate behaviour

Wolf pups begging for food
chick pecking

3

Define Biosphere

Thin area surrounding the earth composed of water, land, and air where organisms are found

4

Four types of treeless biomes

Tundra
Grasslands
Scrublands
Deserts

5

Define Ecology

Study of the interaction of organisms with each other and with the physical environment

6

Define Niche

profession or total role in the community (no two species can occupy the same niche at the same time)

7

Four types of heterotrophic consumers

herbivores
carnivores
omnivores
decomposers

8

Define Commensalism

One organism is benefitted while the other organism is neither benefited or harmed; ex. barnacles on whales