|
ANNUAL
An Annual plant does not live beyond one year. It normally starts from
seed, produces flowers, seeds and fruits and then dies. You can compare
Annual to biennial and perennial.
Click
on Back in your browser to return to previous page.
ASEXUAL REPRODUCTION
This is reproduction involving only one parent, as it makes an exact copy
of itself. It does not involve two sexes, and could be described as the
opposite of sexual reproduction. Asexual reproduction can occur by vegetative
reproduction e.g. in some plants or asexual spore
formation, e.g. in some fungi reproduction.
Click
on Back in your browser to return to previous page.
BIENNIAL (sounds like
"bye-enn-ee-al)
A plant that takes 2 years to complete its life cycle. During the first
year it stores up food in its roots and other organs. During the second
year, the plant uses up its food stores to produce flowers, fruit and
seed. Then it dies. You can compare biennial to annual
and perennial.
Click
on Back in your browser to return to previous page.
CARNIVOROUS
Something that eats animals.
Click
on Back in your browser to return to previous page.
COMPOUND
EYE
The compound eye is made up of hundreds of tiny little lenses. Each of
the lenses can pick up light, and so working together, they can detect
movement really well.
Click
on Back in your browser to return to previous page.
CONIFEROUS (sounds like
"con-if-er-us")
Conifers are plants that bear their seeds in cones.
Click
on Back in your browser to return to previous page.
COPPICING - (sounds like
"cop-iss-ing")
This is when a person cuts the trunk of a tree, at its base, and so encourages
the growth of lots of shoots. The result is many thin woody shoot-like
branches, which can be used to make fencing, baskets and other useful
items. Coppicing also allows more sunlight to reach the forest floor,
and so allows all sort of other plants, such as wild flowers, to spring
up.
Click
on Back in your browser to return to previous page.
DECIDUOUS (sounds like
"dess-id-you-us")
A tree which loses its leaves at a particular season. In Britain, many
trees lose their leaves in the autumn. Most broad-leaved trees like oak
and beech are deciduous. Shedding leaves helps a plant to save water,
by reducing loss of water vapour (by transpiration).
Click
on Back in your browser to return to previous page.
EGG
In the plant world, this is the female sex cell, also known as an ovum.
It is found inside the ovule and it develops into a seed.
Click
on Back in your browser to return to previous page.
EPIPHYTE (sounds like
"epp-if-ite")
A plant that grows on the surface of another plant, such as a tree, or
on another structure such as a wall or telegraph pole, which it uses as
a support. The epiphyte does not take any nutrient from this support.
Many mosses and orchids are epiphytic.
Click
on Back in your browser to return to previous page.
EVERGREEN
The leaves on evergreen plants stay on all year round. Their leaves can
last three to four years and often have a dark, waxy skin to help the
tree to save water.
Click
on Back in your browser to return to previous page.
FERTILISATION
The process of sexual reproduction when
a female and a male sex cell fuse with each other.
Click
on Back in your browser to return to previous page.
FRUIT
A fruit contains a seed or several seeds. The function of the fruit is
to disperse the seed. The fruit grows from the ovary once it has been
fertilised. The fruit can be fleshy (for example apple, tomato, and raspberry)
or dry (for example dandelion or clematis).
Seeds that are spread
by animals are soft and juicy, to tempt the animal to eat them. If they
are spread by the wind, they are light, hard and dry. Such fruits can
have light feathery parachutes to help carry the seeds off in the wind.
Many fruits, such as these, have unusual structures, which we might not
immediately recognise as fruits.
Click
on Back in your browser to return to previous page.
|