Unit 4

Question 1

how do bees find flowers

Answer 1

scouting

being recruited by dancing bees

Question 2

how do flowers attract bees

Answer 2

shapes, colours, scents 
nectar guides (UV coloured lines)

Question 3

fidelity

Answer 3

bees tend to forage on only a single flower species during foraging trips

Question 4

2 factors attracting bees

Answer 4

amount and sugar concentration

Question 5

nectar sugars

Answer 5

sucrose, glucose, fructose

sucrose and glucose are most attractive

Question 6

env. factors affecting nectar secretion

Answer 6

soil moisture and solar radiation

Question 7

ideal combination for nectar production

Answer 7

humid soil and sunny days

Question 8

pollen

Answer 8

male reproductive cells (gametes) of plants
produced in anthers
more available early in the day

Question 9

pollen transport

Answer 9

have negative charges to stick to bees hair

20mg (2 pollen pellets)

Question 10

water collection

Answer 10

used to cool hive

transport in honey stomach

Question 11

propolis

Answer 11

bee glue
reduces microbial growth and sanitizes
encase objects

Question 12

robbing

Answer 12

during dearth periods

scout bees

Question 13

rearing of males

Answer 13

spring

5000 - 20000

Question 14

rearing of queens

Answer 14

spring
10 queens
1-4 will mate

Question 15

building of queen cells

Answer 15

lack of perception of queen substance by workers

Question 16

rearing of queens

Answer 16

sudden loss
swarming
does not lay sufficient eggs
kills rival queens

Question 17

mating flights queen

Answer 17

6-13 days after emergence

Question 18

drones

Answer 18

haploid

14-21 after emergence = sexually mature

Question 19

mating flight areas

Answer 19

congregation areas (50-200m diameter) (4-20 m above ground)

Question 20

mating flights drones

Answer 20

leave nest early in the morning 
chase and inseminate queens 
grasp with legs 
endophallus 
dies after

Question 21

mating flight queens

Answer 21

attracts drone using 9-oxi-2-decenoic acid (queen substance)
closes sting chamber when done
mates with 10-40 drones in one flight
lays eggs after 2-5 days

Question 22

semen storage

Answer 22

semen reaches oviducts then is contracted to her vagina then sent to spermatheca

Question 23

fertilized eggs

Answer 23

layed in cells with small diameter (worker or queen)

Question 24

unfertilized eggs

Answer 24

layed in larger cells (drone cells)