Pandemic
Chemistry of Life
Life or Something Like It
Environmental Balancing Act
Anything Goes
200
Some consider these pathogens nonliving since they cannot reproduce on their own.
Virus
200
Hydrogen bonds form between regions in molecules that are ___________ in charge
Opposite
200
How many strands of DNA are contained in the chromosome shown below?
Two
200
What is a species that if protected will also result in protecting many other species.
umbrella species
200
The division of a species' habitat by a road or other man-made structure
habitat fragmentation
400
Put the following pathogens in order from largest to smallest: viruses, viroids, bacteria and prions
bacteria, viruses, viroids, prions
400
Diffusion of water molecules across a membrane is called
osmosis
400
What is the term for programmed cell death?
Apoptosis
400
The first organisms that enter a previously uninhabited area are called
pioneer species
400
The concept that two organisms cannot occupy the exact same niche at the same time.
competitive exclusion
600
These cell structures are the site of protein synthesis
ribosomes
600
In cellular respiration, what molecule "catches" the electrons at the end of the electron transport chain?
oxygen
600
Name two molecules formed during the kreb's cycle
NADH, FADH2, ATP, CO2 (any two of these)
600
The concentration of toxins increases as you move up the food chain in a process called
biomagnification
600
They type of growth an organism experiences when there is unlimited resources
exponential
800
The type of viral infection that causes the host cells to burst
lytic
800
This is a biological catalyst that speeds up reaction rates
Enzyme
800
What are the two main types of fermentation?
Alcoholic and Lactic Acid
800
The gradual process of regrowth that occurs after a forest fire.
Secondary succession
800
The maximum number of organisms an environment can support.
carrying capacity
1000
Prokaryotes reproduce by this process
Binary Fission
1000
When a neutral atom loses or gains an electron, it forms a/an ___________
Ion
1000
When faced with extreme environments, bacteria can form a thick protected wall. This is called a ________
endospore
1000
The type of survivorship curve for humans.
Type 1 survivorship
1000
What is this type of growth called? 
Logistic growth