BIO Ch 2 - Weebly

4
BIO Ch 2.1 Biology Chapter 2 Ecology Chapter 2 Section 1 I. Ecology is the scientific study of interactions among organisms and their environment. A. Biosphere—portion of the earth that supports life (atmosphere to bottom of oceans) B. Biotic factors—the living organisms that inhabit an environment. C. Abiotic factors—the nonliving parts of the environment. Ex. Air currents, temperature, moisture, light, and soil Biotic/Abiotic Worksheet 1. From the following story, complete the listing below: One day, Lizzie the lizard was crawling along a rock near her home. As she crawled along she saw a group of 5 crickets. Her stomach growled as it was close to her lunch time and she jumped out and caught one in her mouth. Crunching the exoskeleton of the cricket, she rolled her eyes up as it tasted so good to her. As she was busy eating one cricket, the others leaped away and hid under a bush that was growing under the two elm trees nearby. Lizzy finished her cricket and thought, “Yum” and went to find the others. When she snuck up to the bush, she found not only the crickets were hiding there but a whole group of rolypoly’s and a mouse looking for lunch too. A mouse is much bigger than Lizzie, so she ran back home. Individual’s in the story: ____________, _____________, _____________ Populations in the story: ___________________, ____________________________, ___________________________________ List the community: __________________________________________________________________________________________________________ 2. Place the following items in the correct box: Rock, worm, tree, rain, grass, lizard, sun, lightning, bush, mouse, temperature ABIOTIC . BIOTIC . Biotic vs. Abiotic? That is the Question!

Transcript of BIO Ch 2 - Weebly

BIO Ch 2.1 Biology Chapter 2 Ecology
Chapter 2 Section 1
I. Ecology­­ is the scientific study  of interactions among organisms  and their environment.       A. Biosphere—portion of the  earth that supports life  (atmosphere to bottom of oceans)
B. Biotic factors—the living  organisms that inhabit an  environment. C. Abiotic factors—the nonliving  parts of the environment.  Ex. Air currents, temperature,  moisture, light, and soil
Biotic/Abiotic Worksheet
1.  From the following story, complete the listing below:
One day, Lizzie the lizard was crawling along a rock near her home.  As she crawled along she saw a group of 5 crickets.  Her stomach growled as it was close to her  lunch time and she jumped out and caught one in her mouth.  Crunching the exoskeleton of the cricket, she rolled her eyes up as it tasted so good to her.  As she was busy eating  one cricket, the others leaped away and hid under a bush that was growing under the two elm trees nearby.  Lizzy finished her cricket and thought, “Yum” and went to find the  others.  When she snuck up to the bush, she found not only the crickets were hiding there but a whole group of roly­poly’s and a mouse looking for lunch too.  A mouse is much  bigger than Lizzie, so she ran back home.
Individual’s in the story:  ____________,  _____________,  _____________
Populations in the story: ___________________, ____________________________, ___________________________________
List the community:  __________________________________________________________________________________________________________
2.  Place the following items in the correct box: Rock, worm, tree, rain, grass, lizard, sun, lightning, bush, mouse, temperature
                       ABIOTIC                   .
                        BIOTIC                     .
BIO Ch 2.1 
II. Levels of Organization in Ecology A. Organisms—Ecologists may  study the interactions of an  individual organism.  They may  study its organisms, interactions  with like species or interactions  with different species.
Levels of Organization for Organisms.mht
B. Population­­group of  organisms of one species living in  the same place at the same time  that interbreed. C. Community—collection of  interacting populations.
1. Niche­a species function in a  community (includes all  relationships with the  environment—living and  nonliving 2. Habitat—place where an  organism lives.
D. Ecosystems ­­interactions  between populations in a  community and the abiotic factors 
Drag the levels of organization in order  from largest to smallest category.
Organism
Biosphere
Molecules
Ecosystem
Community
Tissue
http://app.discoveryeducation.com/core:player/view/assetGuid/0B666D65­13A0­46AD­9914­ 4C7BA106DA46
ECOLOGY: ORGANISMS IN THEIR ENVIRONMENTS from the series Biology: The Science of Life
Directions: Answer the following either true or false.
1. True or False? The living things in an ecosystem make up its abiotic factors.
2. True or False? Different populations are composed of different species of organisms.
3. True or False? A niche is the particular place in which an organism lives.
4. True or False? Food webs are made up of interconnected food chains.
5. True or False? In food chains, many third­order consumers are needed to support only a few food producers.
Levels of Organization
All living things have a structure that is based on specific organization of materials. While science discovers new levels all of the time, the life sciences tend to draw some distinctive lines of demarkation.
In Anatomy, you are responsible for knowing the levels of organization from the atom to the organism.
Level of organization
Explanation
Example
atom
atom is the smallest particle that maintains its physical and chemical properties; note that particles smaller than the atom have been discovered, but they do not maintain these properties
oxygen, nitrogen, gold
water, carbon dioxide
macromolecule
when two or more molecules are bonded together to form large (gigantic!) molecules
proteins, lipids, carbohydrates
organelles
several macromolecules bonded together form these building blocks of a cell
mitochondria, nucleus, golgi apparatus
Below this level begins what scientists consider living or alive
cells
the smallest unit of life, a cell is a collection of organelles functioning together
bacteria, animal, plant
tissues
a collections of cells working together to perform a specific job
epithelial, connective
organs
two or more types of tissues that work together to complete a specific task
heart, stomach, brain
organ systems (systems)
several organs working in unison to achieve a common goal
digestive, cardiovascular, respiratory
human, dog, tree
population
groups of individual organisms of the same species working together to achieve a common goal
bees, ants
all of the human species
ecosystem
wetlands, oak forest
desert, trundra, rainforest
the earth's living occupants
Levels of Organization
All living things have a structure that is based on specific organization of materials. While science discovers new levels all of the time, the life sciences tend to draw some distinctive lines of demarkation.
In Anatomy, you are responsible for knowing the levels of organization from the atom to the organism.
Level of organization
Explanation
Example
atom
atom is the smallest particle that maintains its physical and chemical properties; note that particles smaller than the atom have been discovered, but they do not maintain these properties
oxygen, nitrogen, gold
water, carbon dioxide
macromolecule
when two or more molecules are bonded together to form large (gigantic!) molecules
proteins, lipids, carbohydrates
organelles
several macromolecules bonded together form these building blocks of a cell
mitochondria, nucleus, golgi apparatus
Below this level begins what scientists consider living or alive
cells
the smallest unit of life, a cell is a collection of organelles functioning together
bacteria, animal, plant
tissues
a collections of cells working together to perform a specific job
epithelial, connective
organs
two or more types of tissues that work together to complete a specific task
heart, stomach, brain
organ systems (systems)
several organs working in unison to achieve a common goal
digestive, cardiovascular, respiratory
human, dog, tree
population
groups of individual organisms of the same species working together to achieve a common goal
bees, ants
all of the human species
ecosystem
wetlands, oak forest
desert, trundra, rainforest
the earth's living occupants