WorksheetsARCA 24-25 Science Leap Review
Total questions: 20
Worksheet time: 19mins
In a food chain, which are the most efficient users of solar energy?
Herbivores
Carnivores
Omnivores
Parasites
A scientist wanted to study a cell which lacked
the structure that contains the materials needed to
control cell activities. Which structure would need
to be missing from the cell for this study to take
place?
nucleus
vacuole
lysosome
mitochondria
Which statement correctly describes a difference between prairie dogs and strawberry plants?
Prairie dogs can reproduce sexually and asexually; strawberry plants can only reproduce sexually.
Prairie dogs can reproduce sexually and asexually; strawberry plants can only reproduce
asexually.
Prairie dogs can only reproduce asexually; strawberry plants can reproduce both sexually
and asexually.
Prairie dogs can only reproduce sexually; strawberry plants can reproduce both sexually
and asexually.
Which statement describes how a plant cell’s
functions would change in the absence of a
vacuole?
The cell would not be able to produce proteins.
The cell would lack energy to destroy foreign
objects.
Fluid and wastes would not be stored within
the cell.
Materials would not be transported between
the nucleus and cell membrane.
A student wants to perform an experiment to test how much water bean plants need for good growth. Which factor should be changed?
The Temperature
The amount of light
The amount of water
The amount of soil
In guinea pigs, black hair color is dominant (B) and white
hair color is recessive (b). What hair color are the
guinea pigs’ offspring?
All black
All white
Mostly black with some white
Mostly white with some black
The graph shows the population of rabbits in a field over a seven-year period. Based on the data, what is the approximate carrying capacity in the field for rabbits?
200
400
500
600
A scientist examines a structure within a cell that
contains a large amount of genetic material. Which
statement best identifies this structure’s function?
It controls cellular activities.
It stores food, water, and wastes.
It gives the cell shape and support.
It uses light energy to make sugars.
Green plants are important to animals because the
plants________
consume food and give off oxygen
consume food and give off carbon dioxide
produce food and give off oxygen
produce food and give off carbon dioxide
Which relationship is mutualistic?
an insect that lives and feeds on the body of an alligator
an ant that lives on a plant and defends the plant from other insects
a bird that migrates to follow the movements of the butterflies that it eats
a deer that eats one kind of plant, which allows another kind of plant to grow in its place
How does the number of chromosomes in egg and
sperm cells at the end of meiosis compare with that
in body cells?
They have half the number of chromosomes.
They have twice the number of chromosomes.
They have the same number of chromosomes.
They have one-fourth the number of chromosomes.
After a recent experiment, a scientist noticed that
the computer simulation varied from the actual
experiment. What should the scientist do?
Repeat the experiment several times in order to
verify the results.
Adjust the computer’s program so it matches
the actual results.
Ignore the actual results as inaccurate because
computers are very precise.
Ignore the simulation as inaccurate because of
a possible computer virus.
Why does a gamete produced during meiosis have
half as many chromosomes as a daughter cell
produced during mitosis?
Meiosis does not involve a step in which the
original cell makes a copy of its chromosomes.
Meiosis involves a second cell division that
separates identical chromosomes.
Mitosis does not involve a step in which the
original cell makes a copy of its chromosomes.
Mitosis involves a second cell division that
separates identical chromosomes.
In pea plants, tall plants (T) are dominant to short plants (t). The cross of two heterozygous tall plants is shown in the Punnett square below.
4 tall : 0 short
3 tall : 1 short
2 tall : 2 short
1 tall : 3 short
Which of these best identifies biotic factors in a forest environment?
plants, animals, and their surroundings; including wildflowers, birds, rocks, and water
the features of the habitat and decaying material; including soil, air, dead trees, and bacteria
the things living plants and animals need; including air, water, soil, and nutrients
producers, consumers, and decomposers; including wildflowers, deer, songbirds, and mushrooms
Sometimes when people eat, the food accidentally
enters a tube near the beginning of the respiratory
system instead of the digestive system. This causes
a person to cough. In which part of the respiratory
system can food sometimes get stuck and cause
difficulty in breathing?
lung
alveoli
trachea
diaphragm
Which pair of characteristics is common to all
living things?
having lungs to breathe and using wings to
move
having a vascular system and producing cells
during growth
having one or more cells and having the ability
to reproduce
having a digestive system and responding to
certain environmental factors
A gardener is investigating whether Brand X
fertilizer will increase the growth rate of the rose
plants growing in an outdoor garden. Which rose
plant would be the control for this investigation?
a rose plant in the garden given only water and
sunlight
a rose plant in the garden given Brand X
fertilizer, water, and sunlight
a rose plant in a container given Brand X
fertilizer and placed inside a greenhouse
a rose plant in a container given only water and
sunlight and placed inside a greenhouse
