Unit 2 - Key Words 2, Cells the building blocks of Life Flashcards
the collection of body cells that work together to carry out a task
tissue
the collection of tissues that work together to perform a function
organ
the pollen producing part of the stamen of a flower
anther
the stalk of the stamen that supports the anther
filament
the male sex cell of a flower
pollen
the organ that makes egg cells in female animals and that contains ovules in plants
ovary
the female part of a flower through which pollen travels to fertilise the ovule
style
the pollen receiving part of a flower
stigma
when a male sex cell fuses with a female sex cell
fertilisation
having special features that help survival
adapted
the structure that grows from a pollen grain in order to fertilise an ovule
pollen tube
a widespread disorder in bee populations
colony collapse disorder (CCD)
a chemical applied to a crop to destroy pests
pesticide
a chemical applied to a crop to destroy insect pests
insecticide
the number of organisms living in a particular area or habitat
population
the spreading of seeds from a plant to a new area
seed dispersal
to begin to grow into a plant from a seed
germinate
a variable in an experiment that affects the outcome and is changed
independent variable
the same results would be obtained again if the experiment was carried out by different people using different equipment
reliable
the ovary of a plant after fertilisation which contains seeds
fruit
two organs where human sperm cells are made
testes
protective sac surrounding the testes
scrotal sac
tube that carries sperm from the testes to the prostate gland
sperm duct
liquid produced by the prostrate that mixes with sperm cels to provide them with nutrients
semen
tube which allows semen and urine to exit the penis
urethra
passes semen to the vagina and removes toxins from the body in the form of urine
penis
