2.1 Observing Producers and Consumers Add this title to your TOC and begin this lesson on the next new page in your lab notebook.

Energy is essential for ALL living things!

Photosynthesis Green plants convert solar energy into chemical energy Plants take in CO 2 and produce O 2

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 Ocean Most 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

Zooplankton

Dinoflagellates

Red Tide caused by Dinoflagellates

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!