RIO BIO 156 EXAM 1 | 105 ACTUAL
COMPLETE QUESTIONS AND CORRECT
ANSWERS | RATED A+ | UPDATED 2025
List features that distinguish living organisms from nonliving matter. - ANSWER
1. Cellular basis - All living things consist of one or more cells
2. Requirement for energy and nutrients - Life is sustained by ongoing inputs of
energy and nutrients
3. Homeostasis - Living things sense and respond to change
4. DNA is hereditary material - Genetic information in the form of DNA is passed
to offspring
Describe the levels of organization in the living world. - ANSWER Atoms → cells
→ tissues → organs → organ systems → organism → population → community →
ecosystem → the biosphere
List the three domains of life and distinguish between each domain. - ANSWER
Prokaryotes are bacteria and archaea.
Domain Bacteria: unicellular no nucleus
Domain Archaea: unicellular no nucleus but closer to eukarya
Domain Eukarya: have nucleus
List four kingdoms within the domain Eukarya and distinguish between them. -
ANSWER 1. Fungi can be single or multicellular but digest food outside their
body.
2. Plants are multicellular and are photosynthetic.
,3. Animals are multicellular and eat other organisms for nutrients.
4. Protists are the unicellular organisms that have a nucleus but do not fit any
other category.
List and describe the steps involved in solving a problem using hypothesis-based
science - ANSWER observation
hypothesis
experimental
conclusion
Describe the concept "an organism is more than the sum of its parts." -
ANSWER organism is part of a more complex organization. These emergent
properties go beyond itself.
By definition, distinguish between a population, a community, and an ecosystem. -
ANSWER 1. Population: multiple organisms in a single spot
2. community: is made up of populations of different organisms
3. ecosystem: is the interactions between the community and the non-living
environment that surrounds it
Distinguish between a producer, a consumer and a decomposer. - ANSWER
producer:photosynthetic organisms that trap light and convert that light energy
into chemical bond energy. such as some bacteria, protists, and all plants
consumer: organisms that feed on already-stored food
decomposer: bacteria and fungi recycle the dead molecules throughout the
bioshpere.
, Distinguish between a hypothesis and a prediction. - ANSWER hypothesis:
testable explanation of a natural phenomenon.
prediction: statement based on hypothesis about a condition that should exit if
the hypothesis is correct.
What is meant by the phrase potentially falsifiable hypothesis? - ANSWER a
hypothesis can be proven that is false
Define the term control group and explain the value of a control group in an
experiment. - ANSWER Group of individuals identical to an experimental group
except for the independent variable under investigation
To provide a basis of comparison to the experimental group
Define the term theory and explain the point in which a hypothesis becomes a
theory. - ANSWER Suppose a hypothesis stands even after years of tests.
It is consistent with all data ever gathered, and it has helped us make successful
predictions about other phenomena.
Explain how electron configuration influences the chemical properties of an atom.
- ANSWER Each cloud can hold a determinant number of electrons. When the
electron number changes, ions are formed. The number of electrons influences
the bonding between atoms.
hydrogen bond - ANSWER The electron from the hydrogen spends most of its
time around the oxygen atom creating a partial positive charge on each hydrogen.
The presence of additional electrons makes the oxygen partially negative.
COMPLETE QUESTIONS AND CORRECT
ANSWERS | RATED A+ | UPDATED 2025
List features that distinguish living organisms from nonliving matter. - ANSWER
1. Cellular basis - All living things consist of one or more cells
2. Requirement for energy and nutrients - Life is sustained by ongoing inputs of
energy and nutrients
3. Homeostasis - Living things sense and respond to change
4. DNA is hereditary material - Genetic information in the form of DNA is passed
to offspring
Describe the levels of organization in the living world. - ANSWER Atoms → cells
→ tissues → organs → organ systems → organism → population → community →
ecosystem → the biosphere
List the three domains of life and distinguish between each domain. - ANSWER
Prokaryotes are bacteria and archaea.
Domain Bacteria: unicellular no nucleus
Domain Archaea: unicellular no nucleus but closer to eukarya
Domain Eukarya: have nucleus
List four kingdoms within the domain Eukarya and distinguish between them. -
ANSWER 1. Fungi can be single or multicellular but digest food outside their
body.
2. Plants are multicellular and are photosynthetic.
,3. Animals are multicellular and eat other organisms for nutrients.
4. Protists are the unicellular organisms that have a nucleus but do not fit any
other category.
List and describe the steps involved in solving a problem using hypothesis-based
science - ANSWER observation
hypothesis
experimental
conclusion
Describe the concept "an organism is more than the sum of its parts." -
ANSWER organism is part of a more complex organization. These emergent
properties go beyond itself.
By definition, distinguish between a population, a community, and an ecosystem. -
ANSWER 1. Population: multiple organisms in a single spot
2. community: is made up of populations of different organisms
3. ecosystem: is the interactions between the community and the non-living
environment that surrounds it
Distinguish between a producer, a consumer and a decomposer. - ANSWER
producer:photosynthetic organisms that trap light and convert that light energy
into chemical bond energy. such as some bacteria, protists, and all plants
consumer: organisms that feed on already-stored food
decomposer: bacteria and fungi recycle the dead molecules throughout the
bioshpere.
, Distinguish between a hypothesis and a prediction. - ANSWER hypothesis:
testable explanation of a natural phenomenon.
prediction: statement based on hypothesis about a condition that should exit if
the hypothesis is correct.
What is meant by the phrase potentially falsifiable hypothesis? - ANSWER a
hypothesis can be proven that is false
Define the term control group and explain the value of a control group in an
experiment. - ANSWER Group of individuals identical to an experimental group
except for the independent variable under investigation
To provide a basis of comparison to the experimental group
Define the term theory and explain the point in which a hypothesis becomes a
theory. - ANSWER Suppose a hypothesis stands even after years of tests.
It is consistent with all data ever gathered, and it has helped us make successful
predictions about other phenomena.
Explain how electron configuration influences the chemical properties of an atom.
- ANSWER Each cloud can hold a determinant number of electrons. When the
electron number changes, ions are formed. The number of electrons influences
the bonding between atoms.
hydrogen bond - ANSWER The electron from the hydrogen spends most of its
time around the oxygen atom creating a partial positive charge on each hydrogen.
The presence of additional electrons makes the oxygen partially negative.
