Organisms Flashcards
organisms that have one cell are called? 2 examples
unicellular
ex. amoeba and rotifer
organisms that have more than 1 cell are called? 2 examples
multicellular
ex. elephant and fish
what is a stimulus? 1 example
response to the environment
ex. dog went after mouse, mouses instinct would be to flee or freeze
what are the 3 waste products an organism must get rid of and why?
- urine
- carbon dioxide
- feces
to prevent death
where can an organism get its energy from?
- plants
- animals
- both
organisms respond to the _____ in certain ways
environment
living things need _____ to _____
need energy to survive/live
all living things ___ to full size
grow
all living things must ___ to make more of their own kind
reproduce
define an organism
living part of the environment
define the environment
all things that surround an organism both non-living and living
what is air, water, and land?
parts of the environment
what is another name for savanna?
grasslands
what does it mean to reproduce? types of reproduction
- makes copies of yourself
- asexual (without partner, complete copy)
- sexual (with a partner, identical but not the same)
define paramecium
an oval-shaped, microscopic, animal that moves freely
define rotifer
a microscopic animal usually stuck on rock or leaf
define euglena
microscopic animal or plant
define paddles
things that move the paramecium
what are the 8 characteristics of life?
- produces waste
- reproduce
- grow
- responds to environment
- source of energy
- DNA/gene
- respiration
- movement
describe the characteristic of waste production, with example
must get rid of CO, urine and feces
ex. drinking lots of water, you urinate
describe the characteristic of reproduction, with example
carry on organism’s existence
ex. sexual or asexual
describe the characteristic of growth, with example
growing physically and/or mentally
ex physically = grass growing, must cut
ex mentally = baby getting smarter
describe the characteristic of responding to the environment, with example
responding
- fight
- flee
- flight/run
ex. put sweater on when cold
describe the characteristic of energy, with example
- humans/animals eat food and drink water to stay alive
- plants get energy from sunlight (photosynthesis)
- plants underwater (no sun) get energy from deep-sea vents
describe the characteristic of DNA/gene, with example
passed down through organisms, something from a relative
ex. have long legs, your parents may have them too
describe the characteristic of respiration, with example
cannot hold in breath forever, must breathe in new air and exhale CO
ex. running out of air, breathe in CO
describe the characteristic of movement, with example
always have reason to move
ex. staying in same spot too long makes muscles weak and loss of bone density can die sooner
ex. reason to move = responding to environment
