ecology Flashcards
(17 cards)
what makes up the stamen. what gender is the stamen
the anther and filament. male
what makes up the carpel. what gender is it
the stigma, the style and the ovaries
what is the function of the stigma
site of reproduction
what is the function of the style
tube connecting stigma to ovaries
define pollination
transfer of pollen grains from the anther to the stigma
what are the two types of pollination
self pollination and cross pollination
what are all the methods of cross pollination. what features of the flower make these good methods
insect- bright petals, sweet aromas, nectar, sticky pollen wind pollination-dull petals, light pollen, no scent, strong, lots of pollen
define seed dispersal
the movement, spread or transport of seeds away from the parent plant
define ecosystem
the name given to the plants and animals that are found in a particular location and the area in which they live
define
a) community
b)habitat
c) environment
a) the organisms in an ecosystem
b) the area they live in
c) the conditions in the habitat
define a niche
a particular place or role that an organism has
define competition
animals compete for recourses to survive
what are the main things animals compete for
light, water, space, mates
define abundance
quantity of a species
define percentage cover
the percentage of quadrat occupied by a plant species
define interdependence
the relationships between a predator that only feeds on one type of prey and its prey.
