© John Wiley & Sons Australia, Ltd

Branching keysStudent: _____________________________

Whenplantsgrowinsoilsthataredeficientinvariouselements,theyshowsymptomsofdeficiencydisease.Usethefollowingbranchingkeytoanswerthequestions.

1. Whichelementsaretheseplantslacking?

(a) Plantshavemottledleaveswithsmalldeadspotsatthetipsofthelower,olderleavesonly. ......................................................................................................................................................(b) Plantleavesareyellowbutnotwiltedandhavenodeadspots;theterminalbudishealthy;

therearedarkgreenveinsonsomeleaves. ......................................................................................................................................................

2. Describethedeficiencysymptomsforplantsthatsufferfromalackof:(a) Boron........................................................................................................................................... ......................................................................................................................................................(b) Magnesium.................................................................................................................................. ......................................................................................................................................................

Worksheet 3.9

© John Wiley & Sons Australia, Ltd

Tabular keys 1. Fingerprints

Usetheclassificationkeybelowtoidentifythefingerprintpatterns(VtoZ)illustrated.

V:...............................

W:....................................

X:............................................

Y:..................................................

Z:...............................................

Key:1A. Ridgesformarisingandfallingpatternfromlefttoright...............................goto21B. Ridgesdonotformarisingorfallingpatternfromlefttoright......................goto3

2A. Ridgepatternmakesagentlerisefromlefttoright...................................plainarch2B. Ridgepatternundergoesasteeprisefromlefttoright..........................tentedarch

3A. Ridgepatterniscircular.....................................................................................whorl3B. Ridgepatternisnotcircular.............................................................................goto4

4A. Ridgepatternchangesdirectiononceandreturnsbackward...................singleloop4B. RidgepatternchangesdirectiontwicetoformanSshape.....................doubleloop

ã a

rfo/1

23R

F

ã A

chim

Pril

l/123

RF

ã C

reat

ive

Com

mon

s

ã A

lber

to R

igam

onti/

123R

F

ã J

oao

Este

vao

Frei

tas/

123R

F

Worksheet 3.10

© John Wiley & Sons Australia, Ltd

2. ShapesDevelopaclassificationkey(liketheoneinthefingerprintactivity)toclassifytheshapesshowninthediagramsbelow.

Worksheet 3.10