2.1 Observing Producers and Consumers

Add this title to your TOC and begin this lesson on the next new

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Energy is essential

for ALL living things!

Photosynthesis

• Green plants convert solar energy into chemical energy

• Plants take in CO2 and produce O2

PRODUCERS are organisms capable of photosynthesis

CONSUMERS are organisms that obtain their energy by eating producers

ECOSYSTEMS are made up of populations of many organisms that rely on each other, plus the air, water, and other shared features of the environment

HERBIVORES are organisms that obtain energy from producers [plant-eaters]

For example: cows, sheep, deer, and grasshoppers

CARNIVORES are organisms that obtain energy from other consumers [meat-eaters]

For example: lions, hawks, snakes, spiders, sharks, alligators, and whales

OMINIVORES are organisms that obtain energy from both producers and consumers

For example: bears, pigs, gorillas, rats, raccoons, cockroaches, some insects, and humans

DECOMPOSERS are organisms that break down dead organisms in an ecosystem and returns nutrients to the soil, water, and air

For example: fungi and bacteria

The OceanMost life in the open ocean consists of tiny

organisms called PLANKTON

They inhabit the top 20 meters of water

PHYTOPLANKTON are capable of photosynthesis

ZOOPLANKTON are consumers that eat phytoplankton

Phytoplankton

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

QuickTime™ and aTIFF (Uncompressed) decompressor

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Zooplankton

Dinoflagellates

Red Tide caused by Dinoflagellates

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Bioluminescence

S&S 2.1 Part A

Observe and Sketch 5 different prepared Plankton slides

For each slide: Draw and label what you see

under low power Draw and label what you see

under medium OR high power

S&S 2.1 Part B

Prepare wet mounts of Pond Water - Place 1 drop of water on a slide Add 1 drop of methyl cellulose to the

water on your slide Carefully add a coverslip to your slide Observe your slide under low power Once you find an organism, draw and

label it

S&S 2.1 Part B cont.

Draw the organism under Medium OR High power

Repeat with 4 other wet mounts of Pond water

Answer questions 1-3, 5 & 6 on page 19

Be sure to I/Q/I/A!