BSC 215- exam 1-Latest Questions and
Already Solved Correctly 2026-2027
Updated.
7 characteristics of life - Answer - organization
- cells
- response to stimuli
- homeostasis
- metabolism
- growth
- development
- reproduction
- universal genetic code
organization - Answer living things are made up of units (unicellular or multicellular)
homestasis - Answer maintaining a stable internal environment
metabolism - Answer using materials and energy from environment (anabolism and
catabolism)
growth and development - Answer single celled organisms grow in size, multicellular
organisms go through development and differentiate into different kinds of cells
adaption - Answer living things evolve and adapt over time
- evolution and natural selection
response to stimuli - Answer responding to environment. detecting and responding to internal
and external signals
reproduction - Answer asexual (1parent) sexual (2parents)
universal genetic code - Answer living things are based on DNA
structural levels of organization - Answer chemical, cellular, tissue, organ, organ system,
organism
,tissue - Answer a group of cells working together
- muscle tissue
- nervous tissue
- connective tissue
- epithelial tissue
organ - Answer 2 or more tissues working together
- ex stomach is made of 4
system - Answer organs that work together to perform special functions
integumentary system - Answer hair skin and nails
muscular system - Answer skeletal muscles
skeletal system - Answer bone frame
cardiovascular system - Answer heart pumping blood
respiratory system - Answer lungs
nervous system - Answer electrical messages
lymphatic system - Answer returns fluid to blood, defends against pathogens
digestive system - Answer breaks down food and absorbs nutients
endocrine system - Answer hormones
11 major organ systems diagram - Answer
homeostasis - Answer process where the body keeps a relatively stable internal environment
- variables: temp, pH, blood glucose levels, osmotic balance, blood O2/CO2, calcium
, feedback systems - Answer consists of
- sensor which detects
- control center which sets range
- effector which responds
negative loops - Answer - returned regulated variables to its normal
- oppose internal change
- reduce output
- closed loop
- ex: body temp
positive loops - Answer - increase / reinforce initial stimulus
- less common than neg loops
- effector immediately increases and reinforces
- increase in variable results
- ex: injury to blood vessel and child birth / labor
structure and function are ______________ - Answer complementary
- structure always suits function
gradient core principle - Answer present anytime more of something exists in one area than
another
- drive most psychological processes
- temp, concentration, pressure
cell-to-cell communication - Answer cells must work in coordinated fashion to maintain
homeostasis
- chemical messengers
- electrical signaling
chemical messengers - Answer - endocrine, cells action on distant target cells
- paracrine, signaling cell to cell communication
- autocrine, bind to cell surface receptors on the SAME cell
- juxtacrine, contact of surface molecules to adjacent cells
Already Solved Correctly 2026-2027
Updated.
7 characteristics of life - Answer - organization
- cells
- response to stimuli
- homeostasis
- metabolism
- growth
- development
- reproduction
- universal genetic code
organization - Answer living things are made up of units (unicellular or multicellular)
homestasis - Answer maintaining a stable internal environment
metabolism - Answer using materials and energy from environment (anabolism and
catabolism)
growth and development - Answer single celled organisms grow in size, multicellular
organisms go through development and differentiate into different kinds of cells
adaption - Answer living things evolve and adapt over time
- evolution and natural selection
response to stimuli - Answer responding to environment. detecting and responding to internal
and external signals
reproduction - Answer asexual (1parent) sexual (2parents)
universal genetic code - Answer living things are based on DNA
structural levels of organization - Answer chemical, cellular, tissue, organ, organ system,
organism
,tissue - Answer a group of cells working together
- muscle tissue
- nervous tissue
- connective tissue
- epithelial tissue
organ - Answer 2 or more tissues working together
- ex stomach is made of 4
system - Answer organs that work together to perform special functions
integumentary system - Answer hair skin and nails
muscular system - Answer skeletal muscles
skeletal system - Answer bone frame
cardiovascular system - Answer heart pumping blood
respiratory system - Answer lungs
nervous system - Answer electrical messages
lymphatic system - Answer returns fluid to blood, defends against pathogens
digestive system - Answer breaks down food and absorbs nutients
endocrine system - Answer hormones
11 major organ systems diagram - Answer
homeostasis - Answer process where the body keeps a relatively stable internal environment
- variables: temp, pH, blood glucose levels, osmotic balance, blood O2/CO2, calcium
, feedback systems - Answer consists of
- sensor which detects
- control center which sets range
- effector which responds
negative loops - Answer - returned regulated variables to its normal
- oppose internal change
- reduce output
- closed loop
- ex: body temp
positive loops - Answer - increase / reinforce initial stimulus
- less common than neg loops
- effector immediately increases and reinforces
- increase in variable results
- ex: injury to blood vessel and child birth / labor
structure and function are ______________ - Answer complementary
- structure always suits function
gradient core principle - Answer present anytime more of something exists in one area than
another
- drive most psychological processes
- temp, concentration, pressure
cell-to-cell communication - Answer cells must work in coordinated fashion to maintain
homeostasis
- chemical messengers
- electrical signaling
chemical messengers - Answer - endocrine, cells action on distant target cells
- paracrine, signaling cell to cell communication
- autocrine, bind to cell surface receptors on the SAME cell
- juxtacrine, contact of surface molecules to adjacent cells
