JLAB CERTIFICATION SCRIPT 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
● 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
● 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. Answer: Tissues → Organs → ? → 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
, ● 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,
● 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)
● How should the fruit above be classified?. Answer: Drupe
● Artificial lights can create a great deal of heat. If a gardener wanted to grow
seedlings indoors that grow best at 25°C, which light intensity should be used?.
Answer: 60 candelas
● The Earth makes a complete rotation once every 24 hours. Which of these would
best illustrate rotation?. Answer: Coin Spinning
● A student wishes to measure the mass of an object. Which instrument would be
most useful?. Answer: Triple beam balance
● Of the following, which is the correct progression in the food chain?. Answer:
Producers → herbivores → carnivores
● One way plants and animals are alike is that they both -. Answer: use oxygen
● The loss of which of these would have the least effect on the water cycle?. Answer:
Animals
● Which of these species would be most in danger of becoming extinct if one of their
food sources became unavailable?. Answer: Panda
SOLUTIONS GRADED A+
● 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
● 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. Answer: Tissues → Organs → ? → 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
, ● 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,
● 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)
● How should the fruit above be classified?. Answer: Drupe
● Artificial lights can create a great deal of heat. If a gardener wanted to grow
seedlings indoors that grow best at 25°C, which light intensity should be used?.
Answer: 60 candelas
● The Earth makes a complete rotation once every 24 hours. Which of these would
best illustrate rotation?. Answer: Coin Spinning
● A student wishes to measure the mass of an object. Which instrument would be
most useful?. Answer: Triple beam balance
● Of the following, which is the correct progression in the food chain?. Answer:
Producers → herbivores → carnivores
● One way plants and animals are alike is that they both -. Answer: use oxygen
● The loss of which of these would have the least effect on the water cycle?. Answer:
Animals
● Which of these species would be most in danger of becoming extinct if one of their
food sources became unavailable?. Answer: Panda
