Scientific Method & Levels of Organization
This term refers to the study of what is observable and testable.
What is science?
This type of feedback reverses a change in order to maintain homeostasis.
What is negative feedback?
This is the outermost layer of the skin.
What is the epidermis?
This division of the nervous system consists of the brain and spinal cord.
What is the CNS (central nervous system)?
This structure of the eye controls how much light enters the eye.
What is the iris?
This is a testable and observable prediction that can be supported or rejected by evidence.
What is a hypothesis?
This type of feedback amplifies a change until a specific process is complete, such as during childbirth.
What is positive feedback?
This term describes a structure that is closer to the surface of the body.
What is superficial?
This process gathers information from inside and outside the body.
What is sensory input?
These photoreceptors in the retina detect color vision.
What are cones?
This type of investigation tests cause-and-effect relationships by controlling variables.
What is an experiment?
These two body systems work together to regulate and coordinate body processes.
What are the nervous system and endocrine system?
This division of the skeleton includes the skull, vertebral column, and ribs.
What is the axial skeleton?
This part of the brain is responsible for thinking, memory, and voluntary movement.
What is the cerebrum?
These small bones of the middle ear amplify sound vibrations.
What are the ossicles?
This type of investigation collects data without changing or manipulating conditions.
What is an observational investigation?
These systems protect the body and help regulate body temperature.
What are the integumentary system and immune system?
These bone cells are responsible for building and rebuilding bone tissue.
What are osteoblasts?
This brain structure controls balance, posture, and coordination of movement.
What is the cerebellum?
This body plane divides the body into front (anterior) and back (posterior) sections.
What is the coronal (frontal) plane?
What are the levels of biological organization from simplest to most complex.
cell → tissue → organ → system → organism
This system uses hormones released into the bloodstream to regulate body functions over longer periods of time.
What is the endocrine system?
This type of fracture commonly occurs in children and involves the bone bending rather than completely breaking.
What is a greenstick fracture?
This part of the brain regulates involuntary functions such as breathing and heart rate.
What is the brainstem?
Flavor is the combined perception of these two senses.
What are taste and smell?