JLab 2024/2025 Exam Questions
Marking Scheme New Update | A+ Rated
The diagram shows a simple food web of organisms on a forest floor.
Which of these is most dependent on the earthworm for its food supply? -
🧠ANSWER ✔✔centipede
In this plant cell, which cellular structure is responsible for storing food,
water, and wastes? - 🧠ANSWER ✔✔vacuole
In the scale model above, one centimeter is equal to one-half of a meter.
The mailbox is two truck lengths away from the model truck. How far away
is the mailbox from the truck on the real street? - 🧠ANSWER ✔✔10 Meters
Asexual reproduction involves only one parent. The offspring of this type of
reproduction have - - 🧠ANSWER ✔✔DNA identical to the DNA of the parent
The picture shows the growth curve of a bacterial population. According to
this information, the bacterial population doubles every - - 🧠ANSWER
✔✔20 Minutes
1
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
,This experiment was set up to test the hypothesis that plants grow faster in
green light. What is the independent variable in this experiment? -
🧠ANSWER ✔✔color of light
The function of a cell nucleus is to - - 🧠ANSWER ✔✔direct the activities of
the cell
What is the mass of the rock? - 🧠ANSWER ✔✔354.6 g
At which of these points is it 12:00 noon? - 🧠ANSWER ✔✔4
According to this diagram, both of these fish - - 🧠ANSWER ✔✔get their
energy from other animals
A plant's green color is due to the presence of which organelle? -
🧠ANSWER ✔✔Chloroplast
Cells → Tissues → Organs → ? - 🧠ANSWER ✔✔Systems
The force that holds the planets in orbit around the sun is called - -
🧠ANSWER ✔✔gravity
Which of the following classification groups contains organisms that have
the most characteristics in common? - 🧠ANSWER ✔✔Species
2
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
, After fishing in the ocean, a student left his fishing gear in the sun to dry.
Later, he noticed that small white crystals had formed on the rod, reel, and
fishing line. Which of these is the best explanation of what occurred? -
🧠ANSWER ✔✔The water evaporated from the fishing gear,
and salt from the ocean was left behind.
Which of these shows the correct sequence of development? - 🧠ANSWER
✔✔Cells → tissues → organs → systems
Black bears roam over large territories. What effect would building
shopping centers in these territories have on the bears? - 🧠ANSWER
✔✔Reduce the black bears' habitat
White-footed mice having thicker fur than cactus mice is probably
influenced most by the differences in the - - 🧠ANSWER ✔✔environmental
climates where they live
Which of these is a way that a person can help improve air quality? -
🧠ANSWER ✔✔Carpool with several people
Based on the position of the wings, which of the insects below is most likely
in the order Hemiptera? - 🧠ANSWER ✔✔(they are images but it is the one
that resembles a beetle)
3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
Marking Scheme New Update | A+ Rated
The diagram shows a simple food web of organisms on a forest floor.
Which of these is most dependent on the earthworm for its food supply? -
🧠ANSWER ✔✔centipede
In this plant cell, which cellular structure is responsible for storing food,
water, and wastes? - 🧠ANSWER ✔✔vacuole
In the scale model above, one centimeter is equal to one-half of a meter.
The mailbox is two truck lengths away from the model truck. How far away
is the mailbox from the truck on the real street? - 🧠ANSWER ✔✔10 Meters
Asexual reproduction involves only one parent. The offspring of this type of
reproduction have - - 🧠ANSWER ✔✔DNA identical to the DNA of the parent
The picture shows the growth curve of a bacterial population. According to
this information, the bacterial population doubles every - - 🧠ANSWER
✔✔20 Minutes
1
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
,This experiment was set up to test the hypothesis that plants grow faster in
green light. What is the independent variable in this experiment? -
🧠ANSWER ✔✔color of light
The function of a cell nucleus is to - - 🧠ANSWER ✔✔direct the activities of
the cell
What is the mass of the rock? - 🧠ANSWER ✔✔354.6 g
At which of these points is it 12:00 noon? - 🧠ANSWER ✔✔4
According to this diagram, both of these fish - - 🧠ANSWER ✔✔get their
energy from other animals
A plant's green color is due to the presence of which organelle? -
🧠ANSWER ✔✔Chloroplast
Cells → Tissues → Organs → ? - 🧠ANSWER ✔✔Systems
The force that holds the planets in orbit around the sun is called - -
🧠ANSWER ✔✔gravity
Which of the following classification groups contains organisms that have
the most characteristics in common? - 🧠ANSWER ✔✔Species
2
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
, After fishing in the ocean, a student left his fishing gear in the sun to dry.
Later, he noticed that small white crystals had formed on the rod, reel, and
fishing line. Which of these is the best explanation of what occurred? -
🧠ANSWER ✔✔The water evaporated from the fishing gear,
and salt from the ocean was left behind.
Which of these shows the correct sequence of development? - 🧠ANSWER
✔✔Cells → tissues → organs → systems
Black bears roam over large territories. What effect would building
shopping centers in these territories have on the bears? - 🧠ANSWER
✔✔Reduce the black bears' habitat
White-footed mice having thicker fur than cactus mice is probably
influenced most by the differences in the - - 🧠ANSWER ✔✔environmental
climates where they live
Which of these is a way that a person can help improve air quality? -
🧠ANSWER ✔✔Carpool with several people
Based on the position of the wings, which of the insects below is most likely
in the order Hemiptera? - 🧠ANSWER ✔✔(they are images but it is the one
that resembles a beetle)
3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
