characteristics of organisms Flashcards
what are common characteristics of organisms?
GRIMCREN-
GROWTH
RESPIRATION
IRRITABILITY
MOVEMENT
CELLULAR ORGANIZATION
REPRODUCTION
EXCRETION
NUTRITION
what is the structural and funtional unit of organisms
?
cell
what is zygote?
product of fertilization of an egg with sperm
what are the steps of development of an embryo?
egg+sperm——-embryo——–cell divison———-multi cellular organisms
what is the function of phloem tissue?
translocation of food throughout plant body
what is the function of xylem tissue?
transportation of water and mineral throughout plant body
what is the function of root hair cells ?
absorption of water and mineral to plant body
what is the function of guard cell?
controlling the opening and closing of stomata
what is the function of palisade cells?
carryout photosynthesis
what is the function of pollen cells?
male game which carry out reproduction
what is the function of neuron-nerve cell?
transmit nerve impulses
what is the function of WBC?
fight against diseases
what is the function of RBC?
transport oxygen throughout the body
what is the function of muscle cells?
involve in contractions and relaxations
what is the function of skin cell?
protect the internal body organs