Live Organism Schedule

Populations and Ecosystem 2nd Edition/Next Generation

Plant Animal Care  |  Organism Source  |  Live Organism Schedule


Redworms are used in Inv. 1 and 4. See the Teaching Note in Inv. 1.2 for maintaining extra worms for Inv. 4.

Organism

Investigation and Part

Amount Needed

Delta Part # (Live Organism Coupon (LOC))

When to Order

Notes

Milkweed Bugs

Inv. 1 Part 1

30

270-4380

Order a week prior to Inv. 1

Bugs will arrive in last instar or as adults. (It takes about 5-7 days for bugs to reach maturity.)

Pond Snails

Inv. 4, Part 2,
session 1

50

270-1896
(for 25 snails)

Several days before starting Inv. 4, Part 2.

Snails might lay egg masses on plants or sides of aquarium.

Scuds:Gammarus

Inv. 4, Part 2,
session 1

50

Not available separately

Several days before starting Inv. 4, Part 2.

Can possibly be obtained locally.

Elodea sprigs

Inv. 4, Part 2,
session 1

36

270-4372 (for 16 sprigs)

Several days before starting Inv. 4, Part 2.

Can possibly be obtained locally.

Duckweed

Inv. 4, Part 2,
session 1

2 oz. jar

270-1930

Several days before starting Inv. 4, Part 2.

Can be collected locally or purchased at aquarium stores.

Guppies

Inv. 4, Part 2,
session 1

26

270-0367 (for 10 guppies)

Several days before starting Inv. 4, Part 2.

Shipping will stress the guppies. A few may die. Avoid weekend arrival.

Tubifex worms

Inv. 4, Part 2,
session 1

1/2 oz.

270-3172

Several days before starting Inv. 4, Part 2.

Optional. Can be purchased at aquarium stores.

Isopods

Inv. 4, Part 2,
session 2

50

270-1710

Several days before starting Inv. 4, Part 2 session 2

Can also be collected locally.

Land snails

Inv. 4, Part 2,
session 2

2-3 per group

No coupon

Several days before starting Inv. 4, Part 2 session 2

Optional. Can be collected if available in your area.

Redworms

Inv. 4, Part 2,
session 2

150

1450925

Several days before starting Inv. 1, Part 2

20 worms are for the worm habitat in Inv. 1.
130 worms are for the terrariums in Inv. 4.

Organisms for Mini Ecosystem(Includes all of the above except Milkweed bugs and land snails.)

Inv. 4

1 set

270-4379

One week prior to starting Investigation 4

Will need to obtain redworms for worm habitat prior to Inv. 1, Part 2. Redworms can also be purchased at bait stores.