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Voortplanting

Klein spinnekoppe lyk soos volwassenes.

Die spinnekop en ander aragnide in die ekosisteem

Soos die insekte is spinnekoppe, skerpioene en bosluise baie goed by hul omgewing aangepas. Hulle kan uiters droë toestande oorleef. Hulle voed op ander diere wat ook jagters is (egter nie die bosluis nie, wat ‘n parasiet is) en speel dus ‘n belangrike rol in die handhawing van ‘n balans in die ekosisteem. Spinnekoppe moet dus liefs nie doodgemaak word nie. Dieselfde geld vir skerpioene, maar oppas vir dié met dik sterte – hulle is giftig vir die mens.

Opdrag 4:

Bestudeer die volgende paragraaf en beantwoord die vrae wat volg:

Die eienaar van ‘n tuin spuit gif op die plante in sy tuin om van ruspers ontslae te raak. Die tuinier is ongelukkig hieroor en besluit om te kyk hoe die gif ander diere in die tuin affekteer. Hy tel onder andere elke dag hoeveel spinnekoppe en vlieë hy in die tuin kan kry. Hy wil nie vir ons sê watter dier Dier X in die tabel is nie. Hy teken die getalle aan.

Getal diere wat op die aangeduide datums in ‘n tydperk van een uur in die tuin gevind word.

2 Januarie 9 Januarie 16 Januarie 23 Januarie
Spinnekoppe 20 10 7 2
Vlieë 2 12 24 38
Dier X 5 4 2 0

1. Verduidelik wat vanaf 2 Januarie tot 23 Januarie in die tuin gebeur deur na die syfers te verwys.

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2. Watter dier sou Dier X moontlik kan wees? Verduidelik hoekom jy so dink.

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3. Wat behoort die eienaar hieruit te leer?

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Assessering

Leeruitkomste 1: Die leerder is in staat om met selfvertroue op weetgierigheid oor natuurlike verskynsels te reageer, en om binne die konteks van wetenskap, tegnologie en die omgewing verbande te ondersoek en probleme op te los.

Assesseringstandaard 1.3: Dit is duidelik wanneer die leerder data evalueer en bevindinge kommunikeer: veralgemeen ten opsigte van ‘n relevante aspek en beskryf hoe die data die veralgemening steun.

Leeruitkomste 2: Die leerder ken, interpreteer en pas wetenskaplike, tegnologiese en omgewingskennis toe.

Assesseringstandaard 2.3: Dit is duidelik wanneer die leerder inligting interpreteer: interpreteer inligting deur kernidees in die teks te identifiseer, patrone in aangetekende data te vind en gevolgtrekkings te maak uit inligting in verskeie vorme (bv. prente, diagramme en geskrewe teks);

Assesseringstandaard 2.4: Dit is duidelik wanneer die leerder kennis toepas in ‘n variasie van ‘n bekende situasie: pas konseptuele kennis toe deur ‘n begrip wat onderrig is met ‘n variasie van ‘n soortgelyke situasie in verband te bring.

Questions & Answers

it is the relatively stable flow of income
Chidubem Reply
what is circular flow of income
Divine Reply
branches of macroeconomics
SHEDRACK Reply
what is Flexible exchang rate?
poudel Reply
is gdp a reliable measurement of wealth
Atega Reply
introduction to econometrics
Husseini Reply
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mostafa
hi
LEMLEM
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Sammol
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Mahesh
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Ruqayat
hi
Ruqayat
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hey
Sammol
hi
God
hello
Jahara
Good morning
Jorge
hi
abubakar
hi
Nmesoma
hi
Mahesh
Hi
Tom
Why is unemployment rate never zero at full employment?
Priyanka Reply
bcoz of existence of frictional unemployment in our economy.
Umashankar
what is flexible exchang rate?
poudel
due to existence of the pple with disabilities
Abdulraufu
the demand of a good rises, causing the demand for another good to fall
Rushawn Reply
is it possible to leave every good at the same level
Joseph
I don't think so. because check it, if the demand for chicken increases, people will no longer consume fish like they used to causing a fall in the demand for fish
Anuolu
is not really possible to let the value of a goods to be same at the same time.....
Salome
Suppose the inflation rate is 6%, does it mean that all the goods you purchase will cost 6% more than previous year? Provide with reasoning.
Geetha Reply
Not necessarily. To measure the inflation rate economists normally use an averaged price index of a basket of certain goods. So if you purchase goods included in the basket, you will notice that you pay 6% more, otherwise not necessarily.
Waeth
discus major problems of macroeconomics
Alii Reply
what is the problem of macroeconomics
Yoal
Economic growth Stable prices and low unemployment
Ephraim
explain inflationcause and itis degre
Miresa Reply
what is inflation
Getu
increase in general price levels
WEETO
Good day How do I calculate this question: C= 100+5yd G= 2000 T= 2000 I(planned)=200. Suppose the actual output is 3000. What is the level of planned expenditures at this level of output?
Chisomo Reply
how to calculate actual output?
Chisomo
how to calculate the equilibrium income
Beshir
Criteria for determining money supply
Thapase Reply
who we can define macroeconomics in one line
Muhammad
Aggregate demand
Mohammed
C=k100 +9y and i=k50.calculate the equilibrium level of output
Mercy Reply
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Amisha
money as unit of account means what?
Kalombe
A unit of account is something that can be used to value goods and services and make calculations
Jim
all of you please speak in English I can't understand you're language
Muhammad
I want to know how can we define macroeconomics in one line
Muhammad
it must be .9 or 0.9 no Mpc is greater than 1 Y=100+.9Y+50 Y-.9Y=150 0.1Y/0.1=150/0.1 Y=1500
Kalombe
Mercy is it clear?😋
Kalombe
hi can someone help me on this question If a negative shocks shifts the IS curve to the left, what type of policy do you suggest so as to stabilize the level of output? discuss your answer using appropriate graph.
Galge Reply
if interest rate is increased this will will reduce the level of income shifting the curve to the left ◀️
Kalombe
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Source:  OpenStax, Natuurwetenskappe graad 7. OpenStax CNX. Sep 16, 2009 Download for free at http://cnx.org/content/col11078/1.1
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