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Biology 123 Exam 1 Questions and Answers
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Biology 123 Exam 1 Questions and Answers What are the 5 characteristics of life? 1. respond 2. Reproduce 3. Gross & Develop 4. Adaptations 5. Obtain & use energy What is the lowest level of organization? Atomic of Molecular Level - As Molecules come together and interact they form org...

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  • January 8, 2025
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  • 2024/2025
  • Exam (elaborations)
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  • biology 123 exam 1 questions and answers
  • what are the 5 characteristics of life 1 respond
  • what is the lowest level of organization atomic o

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Biology 123 Exam 1 Questions and
Answers
What are the 5 characteristics of life? - answer 1. respond
2. Reproduce
3. Gross & Develop
4. Adaptations
5. Obtain & use energy

What is the lowest level of organization? - answer Atomic of Molecular Level - As
Molecules come together and interact they form organelles or structures within the cell.

What are the 2 types of Cells? - answer Single celled organisms & Multicellular
organisms

What is the lowest level of life considered alive? - answer Cell

How is an organ formed? - answer When two or more tissues work together to
perform a specific job.

What forms an organ system? - answer When 2 or more organs and or structures
work together to carry out functions they form a organ system.

Define a population - answer A population is a group of organizms of the same
species living together in one area

Define a community - answer Different species living together in the same area

How can we refer to the ecosystem? - answer The relationship between a
community and its physical enviorment.

Define Biome - answer A Major division of the earths surface largely determined by
climate but characterized by the plants and animals inhabiting it.

What makes up the biosphere? - answer All regions on the planet inhabited by
organisms.

Where does all energy come from? - answer The sun

What does light energy convert into? - answer A Chemical energy form, such as
starch or sugar by the process of photosynthesis.

Plant eating organisms are known as? - answer Herbivores

, Meat eating organisms are known as? - answer Carnivores

What is Metabolism? - answer All the chemical reactions necessary to extract the
enrgy stored in food and the chemical reactions that use the energy released to perform
the activites of life.

ATP stands for - answer Adenosine Triphosphate - It is released in a special
molecule during metabolism. This Molecule is able to carry and transport the energy
within the cell.

Define Homeostasis - answer The abililty to maintain a relatively constand internal
enviorment while the external enviorment may change.

Give at least 3 examples of Homeostasis - answer Body Temperature Maintaining
98.6
Childbirth Contractions
The body sweating in order to cool off.

State the levels of Bioloical organizations from Atoms---> Biosphere - answer Atoms,
Molecule, Cell, Tissue, Organ, Organ System, Oganism, Population, Community,
Ecosystem, Biosphere.

Define Natural Selection. - answer Natural selection refers to the survival of
organisms that have an advantage over other organisms. Usually due to genetic
changes that allow adaption in the enviorment easier passed to subsequent organisms.

What is the flow of energy? - answer Sun->Plants->Herbivores->Carnivores.

All Living things can be grouped into three______? - answer Domains

Name the three Domains - answer Archaea (Prokaryotes)
Bacteria (Prokaryotes)
Eukarya (Eukaroytes)

What are the four kingdoms within Eukarya? - answer 1.Protista
2.Fungi
3.Plantae
4.Animilia

What are the components of the Scientific Method - answer 1.Obervation
2.Hypothesis
3.Experiments, Observations & Data
4.Conclusion

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