ecosystems notes 11 9 pd7

DQ 11-10

Lemmings are small mammals that experience a population explosion about once every four years. Snowy owls eat lemmings. Which of these statements is supported by the data in this graph? The snowy owls are becoming

extinct. Lemmings live much longer than

snowy owls. The habitat of the lemmings is

continuously decreasing in size. The snowy owl population

increases because of an increase in lemmings.

Copy the question (underlined) and the Correct Answer

Abiotic Factors

Biotic Factors

Producers = P, Primary Consumers = C1, Secondary Consumers = C2

Predators = Pred, Prey, Scavengers

DQ 11-12Crickets chirp to attract

other crickets. The temperatures and rates of their chirping are graphed. Which statement below is most likely true for the data represented in the graph?– The cooler the temperature, the

louder the crickets chirp.– The crickets cannot chirp at

temperatures lower than 10C.– The warmer the temperature, the

more often crickets chirp. – The temperature and the chirping

of crickets are not related.

Copy the question (underlined) and the correct answer.

Ecosystem

All the living and non-living things in an area

Vocab Review

• Producer = Autotrophs =

• Heterotroph =

• Primary Consumer =

• Secondary Consumer =

• Third-level Consumer =

Corresponding Food Chain:

Owl Pellet Video Questions

1. What is an owl pellet (how is it formed)?

2. Draw a food chain for the owl.