1. Limiting Factors Integrated Science Guided Notes Powerpoint Slides
Fill in the blanks as we discuss these notes during class

2. The size of a population is always changing
Changes in a ________________ size are determined by immigration, births, emigration, and deaths.
The size of a population is always changing
Four factors affecting size
immigration
_________
___________
deaths 2

3. Population growth is based on available ________
________________growth is a rapid population increase due to an abundance of resources. 3

4. ____________________ is due to a population facing limited resources
Logistic vs Exponential Growth Funny Bunnies 4

5. Carrying capacity is the _____________number of individuals in a population that the environment can support. 5

6. Predator Prey Relationship
Mullet are local estuarine fish that move in schools and feed on plankton and plant matter. Natural predators of the mullet include spotted sea trout, sharks, pelicans and dolphins. The graph below shows how the number of mullet in an area has changed over time.
 Based on the data, one student concludes that a new predator was introduced into the area during this time period. Which of the following is a likely alternate explanation for the change in the mullet population?
A. mullet prey increased in the area
B. mullet parasites decreased in the area
C. the temperature of the area increased
D. the amount of aquatic plants in the area decreased
E. I don’t know
The predators keep the prey population under control and the size of the population of prey _________ the amount of predators an ecosystem can support. 6

7. How does the predator-prey relationship affect a population?
A. The predators and prey are in competition with each other.
B. Usually either the predator or the prey will become extinct.
C. The predator species usually has exponential growth.
D. The relationship controls the population size of both species.
E. I don’t know 7

8. Ecosystems Have Living and Nonliving Components
Biotic
Living (or once living)
Interactions
Competition
Predator – prey
Symbiosis
Abiotic
Water
Air
Nutrients
Rocks
Heat
Solar energy pH 8

9. Major Biotic and Abiotic Components of an Ecosystem9

10. Predation Predators Prey Use pursuit Ambush ____________
Chemical warfare (venom)
Prey
Swift movement
Shell
Camouflage
_____________ 10 10

11. PREDATION 11

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16. Some ways prey species avoid their prey
Span worm
Wandering leaf insect
Bombardier beetle
Foul-tasting monarch
butterfly
Poison dart frog
Viceroy butterfly mimics
monarch butterfly
When touched, the
snake caterpillar
changes shape to look
like the head of a snake
Hind wings of moth
resemble eyes of a
much larger animal
Some ways prey species avoid their prey

17. Giant swallowtail butterfly larva (Papilio cresphontes).
Hawkmoth caterpillar. 17

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