WorksheetsCharacteristics of life- UNIT 1
Total questions: 28
Worksheet time: 17mins
What are the most basic units of life; collection of living matter enclosed by a barrier that separates the cell from its surroundings. They are complex and highly organized?
maintain homeostasis
obtain energy
cells
reproduction
how many cells are in a unicellular organism?
millions
one
many
two
how many cells are in a multicellular organism?
multiple
one
two
millions
eukaryote?
only found in ONE called organisms. they are cells without membrane- bound structures.
more complex internal structure. they are cells that have a membrane bound structure.
prokaryote?
more complex internal structure. they are cells that have a membrane bound structure.
only found in ONE called organisms. they are cells without membrane- bound structures.
reproduction is what?
basic unit of life
a signal to which an organism responds.
a simple increase in size
the process of organisms producing new organisms
sexual reproduction?
cells from two different parents unite to produce the first cell of the new organisms
process by which single parent reproduces by it self
asexual reproduction?
process by which single parent reproduces by it self
cells from two different parents unite to produce the first cell of the new organisms
an advantage of sexual reproduction is
(a)
an advantage of asexual reproduction is
(a)
disadvantage of sexual reproduction is
(a)
disadvantage of asexual reproduction is
(a)
What is the characteristic of life that molecules carry the instructions for inheritance (heredity)
sexual reproduction
cells
RNA/DNA
development
what is the difference between growth and development?
growth: a series of changes which multicellular organisms undergo in their passage from the embryonic state to maturity
development: increase in size
growth: increase in size
development: a series of changes which multicellular organisms undergo in their passage from the embryonic state to maturity
which form of asexual reproduction is this: parent breaks into multiple pieces, forming new organisms.
binary fission
regeneration
budding
which form of asexual reproduction is this: organism develops from parent and eventually falls off.
regeneration
binary fission
budding
which form of asexual reproduction is this: organism divides in half to produce identical daughter cells.
binary fission
budding
regeneration
what is metabolism
(a)
what is an autotroph?
obtains energy through digestion of other organisms
obtain energy through photosynthesis/light energy
chemical reaction in an organism
what is a heterotroph?
obtains energy through digestion of other organisms
obtains energy through photosynthesis
chemical reaction in an organism
what is a stimulus in biology?
chemical reaction in an organism
a signal to which an organism responds
basic unit of life
prices by which organisms maintain a relatively stable internal environment
which is an example of an internal stimuli?
temperature
dog barking
smell of pizza
hunger
which is an example of an external stimuli?
thirst
dog barking
illness
hunger
what does maintain a homeostasis mean?
change in a kind of organisms over time
process by which organisms relatively maintain a stable internal environment
basic units of life
a ig am to which an organism responds
what is adaptation?
change in kind of organisms over time
the process of organisms producing new organisms
a series of changes multicellular organisms undergo in their passage from the embryonic state to maturity.
inherited characteristic that increases an organism’s chance of survival
what is an example of adaptation?
owl being able to see at night.
a child growing in height
a puppy growing into an adult
a giraffe eating leaves .
what is evolution?
basic unit of life
process by which organisms maintain a relatively stable internal environment
change in a kind of organisms over time
inherited characteristic that increases an organisms chance of survival
which option correctly shows the 8 characteristics of life
idk the characteristics of life
mobility, made up of cells, need energy, reproduction, evolve, have five senses, have an organ system
made up of cells, able to move, able to breathe, have DNA, develop, respond to stimuli, evolve
made up of cells, reproduction, have DNA, grow and develop, need energy, respond to stimuli, maintain homeostasis, evolution
