MISSOURI RCAL FINAL SCRIPT 2026
QUESTIONS WITH ANSWERS GRADED A+
>> A theory is
Answer: an explanation of an idea that is broad in scope with multiple lines of evidence
>> Organisms that are prokaryotes are in the domains
Answer: Bacteria and Archaea
>> Which of the following is a kingdom within the domain Eukarya?
Answer: Fungi
>> Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that
hierarchy as it increases in complexity?
Answer: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem
>> The tree in your backyard is home to two cardinals, a colony of ants, a wasp's nest, two squirrels,
and millions of bacteria. Together, all of these organisms represent what?
Answer: A community
>> What is the difference between a tissue and an organ system?
Answer: An organ system includes tissues.
>> A hypothesis is?
Answer: a tentative answer to some question.
>> Is the ultimate source of energy flowing into nearly all ecosystems is the sun?
Answer: True
>> You notice that over the past month, many students on campus have started wearing a new style
of school sweatshirt. You think to yourself that perhaps the bookstore has recently started selling this
new sweatshirt style. This prediction is an example of??
Answer: A hypothesis.
>> Which of the following statements about the properties of life is false?
Answer: All organisms have the ability to maintain a constant internal temperature
>> Unlike animal cells, plant cells have ________ and ________. Unlike plant cells, animal cells have
________.
Answer: chloroplasts . . . cell walls . . . centrioles
, >> The idea that all living things are composed of cells and that all cells come from other cells defined
as what?
Answer: cell theory.
>> The nucleus of a cell....
Answer: contains DNA
>> The Golgi apparatus does what?
Answer: stores, modifies, and packages proteins.
>> You are told that the cells on a microscope slide are plant, animal, or bacterial. You look at them
through a microscope and see cell walls and membrane-bound organelles. You conclude correctly
that the cells are what?
Answer: Plant Cells
>> Can light microscopes generally magnify objects about 10,000 times without blurring?
Answer: True
>> Is the function of mitochondria is to undergo photosynthesis?
Answer: False
>> ________ cells lack a membrane-enclosed nucleus.
Answer: Prokaryotic
>> The endosymbiosis theory states that?
Answer: a small cell lived inside a larger cell to the benefit of both cells.
>> Which of the following statements regarding plasmodesmata is false?
Answer: Plasmodesmata are commonly found in single-celled organisms.
>> The four most common elements in living organisms are what?
Answer: C, H, O, N.
>> If you found a fossilized dinosaur bone, what method could be used to determine the age of the
fossil?
Answer: isotope analysis using carbon 14
>> Is the tendency of water molecules to stick together is referred to as adhesion?
Answer: False
>> Do water molecules stick to other water molecules because hydrogen bonds form between the
hydrogen atoms of one water molecule and the oxygen atoms of other water molecules?
QUESTIONS WITH ANSWERS GRADED A+
>> A theory is
Answer: an explanation of an idea that is broad in scope with multiple lines of evidence
>> Organisms that are prokaryotes are in the domains
Answer: Bacteria and Archaea
>> Which of the following is a kingdom within the domain Eukarya?
Answer: Fungi
>> Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that
hierarchy as it increases in complexity?
Answer: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem
>> The tree in your backyard is home to two cardinals, a colony of ants, a wasp's nest, two squirrels,
and millions of bacteria. Together, all of these organisms represent what?
Answer: A community
>> What is the difference between a tissue and an organ system?
Answer: An organ system includes tissues.
>> A hypothesis is?
Answer: a tentative answer to some question.
>> Is the ultimate source of energy flowing into nearly all ecosystems is the sun?
Answer: True
>> You notice that over the past month, many students on campus have started wearing a new style
of school sweatshirt. You think to yourself that perhaps the bookstore has recently started selling this
new sweatshirt style. This prediction is an example of??
Answer: A hypothesis.
>> Which of the following statements about the properties of life is false?
Answer: All organisms have the ability to maintain a constant internal temperature
>> Unlike animal cells, plant cells have ________ and ________. Unlike plant cells, animal cells have
________.
Answer: chloroplasts . . . cell walls . . . centrioles
, >> The idea that all living things are composed of cells and that all cells come from other cells defined
as what?
Answer: cell theory.
>> The nucleus of a cell....
Answer: contains DNA
>> The Golgi apparatus does what?
Answer: stores, modifies, and packages proteins.
>> You are told that the cells on a microscope slide are plant, animal, or bacterial. You look at them
through a microscope and see cell walls and membrane-bound organelles. You conclude correctly
that the cells are what?
Answer: Plant Cells
>> Can light microscopes generally magnify objects about 10,000 times without blurring?
Answer: True
>> Is the function of mitochondria is to undergo photosynthesis?
Answer: False
>> ________ cells lack a membrane-enclosed nucleus.
Answer: Prokaryotic
>> The endosymbiosis theory states that?
Answer: a small cell lived inside a larger cell to the benefit of both cells.
>> Which of the following statements regarding plasmodesmata is false?
Answer: Plasmodesmata are commonly found in single-celled organisms.
>> The four most common elements in living organisms are what?
Answer: C, H, O, N.
>> If you found a fossilized dinosaur bone, what method could be used to determine the age of the
fossil?
Answer: isotope analysis using carbon 14
>> Is the tendency of water molecules to stick together is referred to as adhesion?
Answer: False
>> Do water molecules stick to other water molecules because hydrogen bonds form between the
hydrogen atoms of one water molecule and the oxygen atoms of other water molecules?
