BSC 2023 EXAM 1 Final Test
Questions and Answers Graded A+.
Atoms - Answer join together to form molecules
Cell - Answer smallest structural and functional unit of an organism
Tissue - Answer group of similar cells that perform a particular function
Organ - Answer composed of several tissue types
Organ system - Answer "group of organs that work together for a common purpose. Some of
these organ systems (e.g., the respiratory system) occupy specific cavities; others, (e.g., the
muscular system) are found throughout the body. Organs and cavities are lined with
membranes, many of which secrete fluid"
Organism - Answer collection of organ systems
Species - Answer a group of interbreeding organisms
Population - Answer the members of one species in a particular area
Community - Answer interacting populations
Ecosystem - Answer community of populations interacting with the physical environment
Biosphere - Answer all of the Earth's ecosystems
Energy - Answer "the capacity to do work" Humans acquire materials and energy by eating.
Food provides nutrients, which are used for building blocks and energy. The ultimate source of
energy for life on Earth is the sun"
Photosynthesis - Answer "used by plants, algae, and some bacteria. Harvests energy from the
sun and converts it to chemical energy. Produces sugars, which serve as the basis for the food
chain for other organisms"
, Metabolism - Answer all of the chemical reactions that occur within cells. For the metabolic
pathways within a cell to function correctly, the environmental conditions of the cell must be
kept within strict operating limits.
"External environment - Answer " The space surrounds the body
"Internal environment - Answer " extracellular fluid surrounds the cells of the body.
Homeostasis - Answer "a constant internal environment. Most organ systems strive to
maintain homeostasis. Body Temperature. Blood Volume. Blood Sugar would be impossible to
maintain without the ability to respond to stimuli"
Reproduce - Answer When organisms________, they pass on their genetic information to the
next generation.
DNA (deoxyribonucleic acid) - Answer "the genetic information of all life"
Growth - Answer increase in size and in the number of cells
Development: - Answer all changes that occur from fertilization until death
Evolution: - Answer how a population changes over time
Natural selection: - Answer "the process by which evolution occurs •When a new variation
occurs that allows organisms to capture more resources, those individuals have more offspring"
Adaptation: - Answer over time, population has more individuals with this advantageous
variation
Domains: - Answer Bacteria, Archaea, Eukarya
Bacteria and Archaea: - Answer contain prokaryotes single-celled organisms that lack a
nucleus
Eukaryotic cells: - Answer "contain a nucleus Some eukaryotes are single-celled, some are
multicellular (like humans)"
Questions and Answers Graded A+.
Atoms - Answer join together to form molecules
Cell - Answer smallest structural and functional unit of an organism
Tissue - Answer group of similar cells that perform a particular function
Organ - Answer composed of several tissue types
Organ system - Answer "group of organs that work together for a common purpose. Some of
these organ systems (e.g., the respiratory system) occupy specific cavities; others, (e.g., the
muscular system) are found throughout the body. Organs and cavities are lined with
membranes, many of which secrete fluid"
Organism - Answer collection of organ systems
Species - Answer a group of interbreeding organisms
Population - Answer the members of one species in a particular area
Community - Answer interacting populations
Ecosystem - Answer community of populations interacting with the physical environment
Biosphere - Answer all of the Earth's ecosystems
Energy - Answer "the capacity to do work" Humans acquire materials and energy by eating.
Food provides nutrients, which are used for building blocks and energy. The ultimate source of
energy for life on Earth is the sun"
Photosynthesis - Answer "used by plants, algae, and some bacteria. Harvests energy from the
sun and converts it to chemical energy. Produces sugars, which serve as the basis for the food
chain for other organisms"
, Metabolism - Answer all of the chemical reactions that occur within cells. For the metabolic
pathways within a cell to function correctly, the environmental conditions of the cell must be
kept within strict operating limits.
"External environment - Answer " The space surrounds the body
"Internal environment - Answer " extracellular fluid surrounds the cells of the body.
Homeostasis - Answer "a constant internal environment. Most organ systems strive to
maintain homeostasis. Body Temperature. Blood Volume. Blood Sugar would be impossible to
maintain without the ability to respond to stimuli"
Reproduce - Answer When organisms________, they pass on their genetic information to the
next generation.
DNA (deoxyribonucleic acid) - Answer "the genetic information of all life"
Growth - Answer increase in size and in the number of cells
Development: - Answer all changes that occur from fertilization until death
Evolution: - Answer how a population changes over time
Natural selection: - Answer "the process by which evolution occurs •When a new variation
occurs that allows organisms to capture more resources, those individuals have more offspring"
Adaptation: - Answer over time, population has more individuals with this advantageous
variation
Domains: - Answer Bacteria, Archaea, Eukarya
Bacteria and Archaea: - Answer contain prokaryotes single-celled organisms that lack a
nucleus
Eukaryotic cells: - Answer "contain a nucleus Some eukaryotes are single-celled, some are
multicellular (like humans)"
