module 2 (ecology)

Question 1

define pollination

Answer 1

the transfer of pollen grains from the anther (where they are produced) to the stigma (plant reproduction)

Question 2

define self pollination

Answer 2

the transfer of pollen from the stamen to the stigma of the same plant

Question 3

define cross pollination

Answer 3

the transfer of pollen from the stamen of one plant to the stigma of a different plant

Question 4

define receptacle

Answer 4

the stalk which the flower sits

Question 5

define sepals

Answer 5

green and fleshy and protect the delicate flower parts when still in bud

Question 6

define petals

Answer 6

brightly coloured and attract insects to visit the flower

Question 7

define stamens

Answer 7

the male parts of a flower

Question 8

define carpel

Answer 8

the female part of a flower

Question 9

define anther

Answer 9

produces pollen for the male part of the flower

Question 10

define stigma

Answer 10

where the pollen is collected

Question 11

define ovary

Answer 11

contains the ovules

Question 12

define style

Answer 12

transfers pollen from the stigma to the ovary

Question 13

define filament

Answer 13

produces pollen for the stigma

Question 14

define seed dispersal

Answer 14

the movement, spread or transport of seeds away from the parent plant

Question 15

what are the four types of seed dispersal?

Answer 15

wind, water, animals and birds, bursting

Question 16

define a habitat

Answer 16

the place where an organism lives

Question 17

define an identification key

Answer 17

a tool which enables us to identify organisms based on characteristics by answering questions about them

Question 18

define predator

Answer 18

an animal that hunts and kills other organisms for food

Question 19

define prey

Answer 19

an animal that predators kill for food

Question 20

define sampling

Answer 20

collecting observations or measurements from a small area which is representative of a larger area

Question 21

define distribution

Answer 21

where an organism is found

Question 22

define abundance

Answer 22

the number of certain species present

Question 23

what is random sampling?

Answer 23

uses quadrants and a grid to study the abundance of organisms over an area (samples are taken at random positions to prevent bias)

Question 24

what is non random sampling?

Answer 24

uses a transect to study how the distribution of organisms changes over a distance (samples are taken at fixed positions over a line)

Question 25

define quadrat

Answer 25

a square frame divided into a grid used for random sampling