Hi everybody,I have science problem.Can anybody help me?
1)In an experiment,Charlotte put three different types of
organsims in a jar. She then covered the mouth of the jar with a
plastic lid that had small holes. The table below shows the number
of organisms in the jar over three days.
Producer X Consumer
A Consumer B
Day 1
2
1
1
Day
2 1 0
0
Day
3 1
0
Dead
Explain Charlotte's observations.
2)
Jameel puts a plant and an animal into a glass box each and
places the boxes labelled A and B under the sun. After half an
hour, he records the temperature in the boxes A and B. He notes
that the temperature inside Box B was higher.
a. Which of the two boxes is more likely to contain the
plant?
b. Explain your answer in (a)
3) Mrs Sim bough a non-slip mat for her mother's bathroom to
help avoid falls. The mat has a textured top surface and suction
cups at the back as shown below.
Suction cup (Bottom) ======= ==Texture top surface
(Surface)
Explain how the top abd bottom surfaces are useful to help avoid
falls.
Hi
For your first question, I
think there is an error, for Consumer B, the number should read as
1 instead of 0 for Day 2.
Let me try to answer your
question.
Consumer A is a plant eater
and Consumer B is a meat eater. Producer X is a plant
(leaves).
B feeds on
A
A feeds on
X
In Day 1, there are two
plants, one Consumer A and one Consumer B. ------
(2,1,1)
During Day 2, Consumer A ate
one plant. It was then eaten by Consumer B, the meat eater. -------
(1,0,1)
During Day 3, Consumer B
starved to death because there was no food left (no Consumer A
left). ------ (1,0, dead)
Summarise your answer based
on the above thoughts and you should be on track.
Best
wishes
