Transcript Food Webs--1.31-2.4

Entering the Classroom
• Get your binder
• Get a test-correction sheet and a blank test on
your way in the door.
• Get out your binder and make sure your 2
packets are under the “notes” tab (you’ll need
these for test corrections).
– Prokaryotes and Eukaryotes
– Adaptation, Natural Selection, Evolution
Tuesday: SUB
Entering the Classroom
• Get your binder and make sure you have a
sharp pencil
• Get out your packet that says:
– Food Webs, Cycles, Biomes
• Open to page 3 (Food web Vocab) and review
vocab words.
Key Question for Food Webs:
Why aren’t humans and tigers at
the “top of the food chain?”
Objectives and Standards
Objectives
• C: Take all notes for food webs and draw a food web
• L: Fill in the blanks on notes, write cue words, write summary words
• Standards:
– II.I.I.1. Explain how matter is transferred from one organism to another and
between organisms and their environment (e.g., consumption, the water
cycle, the carbon cycle, the nitrogen cycle).
– II.I.I.2. Know that the total amount of matter (mass) remains constant
although its form, location, and properties may change (e.g., matter in the
food web).
– II.II.I.1 Identify how living and nonliving parts of an ecosystem and the
relationship among these components.
– II.III.I.2. Explain how energy from the sun supports life on Earth
I. Ecosystems are made of biotic and abiotic
factors
A. Biotic—grass, moss, fungi, bacteria, deer
B. Abiotic—rocks, sunlight, clouds, water, air
II. Energy flows through food webs, starting at the
sun
A. Producers are organisms that make their own food
using energy from the sun.
1. Examples: ferns, moss, trees, roses, orange trees
II. Energy flows through food webs, starting at the
sun
A. Producers are organisms that make their own food
using energy from the sun.
1. Examples: ferns, moss, trees, roses, orange trees
B. Consumers are eat other
organisms to get energy
1. Predators kill and eat prey.
2. Parasites “steal” food from
another organism without
killing it.
C. Decomposers break down
wastes or remains or
organisms
1. Bacteria and fungi release
materials to the air, water,
and soil.
2. Energy can
flow from
consumers or
producers to
decomposers
3.
Decomposers
(usually) don’t
pass energy on
to other
organisms.
D. Eventually, most energy is converted to heat!
Note: please change “all” to most.
III. Organisms can interact
with each other in several
ways
A. Predators can eat prey (+/)
B. Parasites can get food
from an organism without
killing it (+/-)
Draw energy flowing through a food web.
Label (1) the sun, (2) Producers, (3)
Consumers, (4) Decomposers