PRAXIS CRAM - BIOLOGY 5236 questions
with answers
Pros of stem cell research - ....🔰VERIFIED ANSWERS.... ✔✔Curing genetic
diseases
Growing skin for burn victims
Growing new organs
Cons of stem cell research - ....🔰VERIFIED ANSWERS.... ✔✔Harvesting
embryonic stem cells kills the embryo, what constitutes a viable embryo?
Cons of genetically modified foods - ....🔰VERIFIED ANSWERS.... ✔✔Man
should not interfere, allergens, modifications not contained-could pass in to
wild species
Cons of cloning - ....🔰VERIFIED ANSWERS.... ✔✔- reduced gene pool
- animals less healthy
- worries that humans could be cloned and born with severe health problems
Pros of cloning - ....🔰VERIFIED ANSWERS.... ✔✔- used for medical research
- Therapeutic cloning
- Can save endangered species
,concerns of genetic testing - ....🔰VERIFIED ANSWERS.... ✔✔Is it a medical
test? Some do not want to know, privacy (who keeps results?), philosophical
(do genes determine behavior?)
scientific theory - ....🔰VERIFIED ANSWERS.... ✔✔a well-tested concept that
explains a wide range of observations
scientific fact - ....🔰VERIFIED ANSWERS.... ✔✔a direct and repeatable
observation of any aspect of the natural world
Hypothesis - ....🔰VERIFIED ANSWERS.... ✔✔A testable prediction, often
implied by a theory
An educated guess
scientific law - ....🔰VERIFIED ANSWERS.... ✔✔A statement that describes
what scientists expect to happen every time under a particular set of conditions
scientific model - ....🔰VERIFIED ANSWERS.... ✔✔a representation of an
object or event that can be studied to understand the real object or event
Scientific Method - ....🔰VERIFIED ANSWERS.... ✔✔A series of steps
followed to solve problems including collecting data, formulating a hypothesis,
testing the hypothesis, and stating conclusions.
sig fig rules - ....🔰VERIFIED ANSWERS.... ✔✔1) non-zero digits and zeros in-
between them are sig figs
2) leading zeros (0.04) are not sig figs
,3) trailing zeros with a decimal are sig figs (without a decimal are not
greenhouse effect - ....🔰VERIFIED ANSWERS.... ✔✔Natural situation in
which heat is retained in Earth's atmosphere by carbon dioxide, methane,
water vapor, and other gases
greenhouse gases - ....🔰VERIFIED ANSWERS.... ✔✔Gases such as carbon
dioxide, methane, nitrous oxide, water vapor, and ozone in the atmosphere
which are involved in the greenhouse effect.
ozone depletion - ....🔰VERIFIED ANSWERS.... ✔✔thinning of Earth's ozone
layer caused by CFC's leaking into the air and reacting chemically with the
ozone, breaking the ozone molocules apart
free radicals - ....🔰VERIFIED ANSWERS.... ✔✔chemical particles with an
odd number of electrons
Human impacts on ecosystems - ....🔰VERIFIED ANSWERS.... ✔✔Acid rain,
ozone depletion, deforestation, urbanization, accelerated species loss, genetic
abnormalities, endocrine disruption in populations, and harm to individual
animals.
global warming - ....🔰VERIFIED ANSWERS.... ✔✔An increase in the average
temperature of the earth's atmosphere (especially a sustained increase that
causes climatic changes)
, acid rain - ....🔰VERIFIED ANSWERS.... ✔✔Rain containing acids that form
in the atmosphere when industrial gas emissions (especially sulfur dioxide and
nitrogen oxides) combine with water.
Eutrophication - ....🔰VERIFIED ANSWERS.... ✔✔A process by which
nutrients, particularly phosphorus and nitrogen, become highly concentrated
in a body of water, leading to increased growth of organisms such as algae or
cyanobacteria.
landfill - ....🔰VERIFIED ANSWERS.... ✔✔The disposal of refuse and other
waste material by burying it and covering it over with soil (leads to methane
greenhouse gas)
independent variable - ....🔰VERIFIED ANSWERS.... ✔✔The experimental
factor that is manipulated; the variable whose effect is being studied.
dependent variable - ....🔰VERIFIED ANSWERS.... ✔✔The outcome factor;
the variable that may change in response to manipulations of the independent
variable.
Properties of Carbon - ....🔰VERIFIED ANSWERS.... ✔✔carbon has 4 valence
electrons, and can bond with other carbon atoms forming chains .
organic molecules - ....🔰VERIFIED ANSWERS.... ✔✔contain skeleton
structures of carbon with hydrogen and oxygen
inorganic molecules - ....🔰VERIFIED ANSWERS.... ✔✔molecules that do not
contain carbon
with answers
Pros of stem cell research - ....🔰VERIFIED ANSWERS.... ✔✔Curing genetic
diseases
Growing skin for burn victims
Growing new organs
Cons of stem cell research - ....🔰VERIFIED ANSWERS.... ✔✔Harvesting
embryonic stem cells kills the embryo, what constitutes a viable embryo?
Cons of genetically modified foods - ....🔰VERIFIED ANSWERS.... ✔✔Man
should not interfere, allergens, modifications not contained-could pass in to
wild species
Cons of cloning - ....🔰VERIFIED ANSWERS.... ✔✔- reduced gene pool
- animals less healthy
- worries that humans could be cloned and born with severe health problems
Pros of cloning - ....🔰VERIFIED ANSWERS.... ✔✔- used for medical research
- Therapeutic cloning
- Can save endangered species
,concerns of genetic testing - ....🔰VERIFIED ANSWERS.... ✔✔Is it a medical
test? Some do not want to know, privacy (who keeps results?), philosophical
(do genes determine behavior?)
scientific theory - ....🔰VERIFIED ANSWERS.... ✔✔a well-tested concept that
explains a wide range of observations
scientific fact - ....🔰VERIFIED ANSWERS.... ✔✔a direct and repeatable
observation of any aspect of the natural world
Hypothesis - ....🔰VERIFIED ANSWERS.... ✔✔A testable prediction, often
implied by a theory
An educated guess
scientific law - ....🔰VERIFIED ANSWERS.... ✔✔A statement that describes
what scientists expect to happen every time under a particular set of conditions
scientific model - ....🔰VERIFIED ANSWERS.... ✔✔a representation of an
object or event that can be studied to understand the real object or event
Scientific Method - ....🔰VERIFIED ANSWERS.... ✔✔A series of steps
followed to solve problems including collecting data, formulating a hypothesis,
testing the hypothesis, and stating conclusions.
sig fig rules - ....🔰VERIFIED ANSWERS.... ✔✔1) non-zero digits and zeros in-
between them are sig figs
2) leading zeros (0.04) are not sig figs
,3) trailing zeros with a decimal are sig figs (without a decimal are not
greenhouse effect - ....🔰VERIFIED ANSWERS.... ✔✔Natural situation in
which heat is retained in Earth's atmosphere by carbon dioxide, methane,
water vapor, and other gases
greenhouse gases - ....🔰VERIFIED ANSWERS.... ✔✔Gases such as carbon
dioxide, methane, nitrous oxide, water vapor, and ozone in the atmosphere
which are involved in the greenhouse effect.
ozone depletion - ....🔰VERIFIED ANSWERS.... ✔✔thinning of Earth's ozone
layer caused by CFC's leaking into the air and reacting chemically with the
ozone, breaking the ozone molocules apart
free radicals - ....🔰VERIFIED ANSWERS.... ✔✔chemical particles with an
odd number of electrons
Human impacts on ecosystems - ....🔰VERIFIED ANSWERS.... ✔✔Acid rain,
ozone depletion, deforestation, urbanization, accelerated species loss, genetic
abnormalities, endocrine disruption in populations, and harm to individual
animals.
global warming - ....🔰VERIFIED ANSWERS.... ✔✔An increase in the average
temperature of the earth's atmosphere (especially a sustained increase that
causes climatic changes)
, acid rain - ....🔰VERIFIED ANSWERS.... ✔✔Rain containing acids that form
in the atmosphere when industrial gas emissions (especially sulfur dioxide and
nitrogen oxides) combine with water.
Eutrophication - ....🔰VERIFIED ANSWERS.... ✔✔A process by which
nutrients, particularly phosphorus and nitrogen, become highly concentrated
in a body of water, leading to increased growth of organisms such as algae or
cyanobacteria.
landfill - ....🔰VERIFIED ANSWERS.... ✔✔The disposal of refuse and other
waste material by burying it and covering it over with soil (leads to methane
greenhouse gas)
independent variable - ....🔰VERIFIED ANSWERS.... ✔✔The experimental
factor that is manipulated; the variable whose effect is being studied.
dependent variable - ....🔰VERIFIED ANSWERS.... ✔✔The outcome factor;
the variable that may change in response to manipulations of the independent
variable.
Properties of Carbon - ....🔰VERIFIED ANSWERS.... ✔✔carbon has 4 valence
electrons, and can bond with other carbon atoms forming chains .
organic molecules - ....🔰VERIFIED ANSWERS.... ✔✔contain skeleton
structures of carbon with hydrogen and oxygen
inorganic molecules - ....🔰VERIFIED ANSWERS.... ✔✔molecules that do not
contain carbon
