Characteristics Of Living Things Flashcards
what is spontaneous generation?
the idea that living things can come from non-living things.
what is a cell?
a basic unit of life
what are nutrients?
substances that provide energy and materials to help grow and develop
what if the difference between behavioural adaptation and structural adaptation?
behavioural is the way animals act toward something (birds flying south) and structural is a extra adaptation (webbed feet)
what is a stimulus?
anything that causes a response
what are spiracles?
small holes on an insect that help the insect breathe.
what are the structures of the circulatory system?
heart arteries veins capillaries blood
what’s the function of the circulatory system? (three functions)
transport oxygen, carbon dioxide and food throughout the body.
fights body against diseases.
connects all the organ systems.
what is the largest organ in the human body?
the skin or integumentary system.
what are the structures of the respiratory system?
nose mouth trachea diaphragm bronchi lungs
what is the function of the respiratory system? (two)
transport oxygen from outside air into blood.
transport carbon dioxide from blood to outside air.
what are the structures of the digestive system?
salivary glands mouth esophagus stomach liver pancreas gall bladder small + large intestine
what’s the function of the digestive system?
break down food pieces into particles to be absorbed and transported throughout the human body.
what are the structures of the nervous system?
Brain
spinal cord
sensing organs
what’s the function of the nervous system? (two)
coordinate and control actions of all organs.
detect, process and respond to environment
what are the structures in the excretory system?
kidneys bladder lungs skin liver
what’s the function of the excretory system?
remove chemical and gaseous waste from blood
what are the structures of the skeletal system?
bones
cartilage
what’s the function of the skeletal system? (two)
provide movable support frame for the body.
protects soft-tissue organs (lungs, heart)
what are the structures of the muscular system?
muscles
tendons
what’s the function of the muscular system? (two)
move bones.
move organs that contain muscle tissue(heart, stomach)
how many bones are in your body?
206
what is the structure in the integumentary system?
skin
what is the function of the integumentary system? (two)
protects internal environment from external environment.
senses pain, pressure and temperature.
