Questions 1-5
Fernando is looking at a cell under a microscope, and he thinks it is a plant cell. Which of the
following questions could he ask to determine whether or not it is a plant cell?
C.Does the cell have a waxy outer layering that prevents the cell from bursting
The three plants shown are all the same species and the same age. Select the statement below
that gives the most likely explanation for the difference in their sizes.
d. The shortest plant received little water and sunlight.
A student is making a model of the cardiovascular system, showing the different components, or
levels that make up this system.
Which component of the system is indicated by the question mark (?) in the model?
a. blood cells
Part B: Explain your reasoning.
a. The side of the plant that is less exposed to light will shorten, causing the plant to bend away
from the light.
The side of the plant that is more exposed to light will shorten, causing the plant to bend
away from the light.
Part 2 – How do the systems work together to help Tom to lift the book?
he nervous system sends signals from Tom's brain to his muscles, telling them to contract and lift the book. The muscular system provides the strength and force needed to lift the book, while the skeletal system provides a framework for the muscles to attach to, allowing movement.
A biologist is looking at an animal cell under a microscope, and noticed there is something wrong
with the way it is functioning. It is not allowing water into the cell. Look at the diagram below and
identify the location in the cell where this problem is most likely occurring.
Location A
Plants rely on the process of photosynthesis to grow and reproduce. What resources do they
need for this process?
d. energy from the sun; matter from water and carbon dioxide in the Air
Many systems of the body are interconnected. Why might a disorder that affects the nervous
system cause a person to have difficulty walking?
d. The nervous system disorder may disrupt the ability of the brain to send impulses to the
muscles, telling them to move.
Frankie makes the claim that all three seeds from the data table show evidence of gravitropism.
Is he correct? Explain your reasoning.
a. Yes, because the stems and roots are all growing downward.
b. No, because the seeds are all in different positions relative to the stems and roots.
c. Yes, because the roots are growing downward while the stems are growing upward.
d. No, because both stems and roots are growing upward.
c. Yes, because the roots are growing downward while the stems are growing upward.
Harry examines a drop of pond water under a microscope. He draws pictures of structures
that he observes, counts them, and measures their sizes. Eight hours later, he comes back
and observes the same drop again. He counts the structures and measures their sizes.
The table summarizes what Harry observed.
I
II
III
IV
5 5 0.1 0.1
2 4 0.15 0.20
2 2 0.055 0.055
1 4 0.25 0.45
Initial
Number
Final
Number
Average Size—Initial
(in millimeters)
Average Size—Final
(in millimeters)
Structure
not to scale
Part A – Which of the structures is likely a living thing? Select all that apply.
a. I
b. II
c. III
d. IV
d. IV
Alonzo went hiking up a local mountain. The lack of oxygen at such a high altitude on the
the mountain caused his body to respond. Which of the following accurately describes how Alonzo’s
systems worked to maintain homeostasis at such a high altitude?
a. He breathed faster, which allowed more oxygen into the lungs, and through the bloodstream, where it is delivered to the cells.
This energy pyramid shows the flow of energy in an aquatic food chain. Choose the statement
that correctly describes the flow of energy in this diagram.
c. As you move up the pyramid, there is less energy at each level.
Plants use the energy they obtain from the sun to make sugar molecules, which help the plants
grow. How could a student add to this model to show where the sugar molecules fit in?
c. by drawing the sugar molecules as an output of energy from within the chloroplasts
Classify the objects as living or nonliving. Write the terms from the word bank in the correct
column.
Living Nonliving
red blood cell snail rock leaf water shell
b. Nonliving | |
| | Living: red blood cell, snail, leaf | | Nonliving: rock, water, shell |
Part B – What is the evidence for your answer(s)? Select all that apply.
a. The number of the structure increases.
b. The average size of the structure increases.
c. The number of the structure stays the same.
d. The average size of the structure stays the same.
a. The number of the structure increases.
A biologist is observing an organism under a microscope and concludes that it is a unicellular
organism.
Which of the following observations provides evidence that this organism must be unicellular, not
multicellular?
d. It performs all functions to maintain life.
Plants and animals get the energy for life-supporting functions from a process called cellular
respiration. When combined with photosynthesis, it represents a cycle of matter and flow of
energy between animals and plants.
d. Part D
e. Part E
Below are four examples of animal behavior. Read each description and decide If it is an example
of homeostasis. If it is an example of homeostasis, label it with a ‘Y.’ If it is not an example of
homeostasis, label it with an ‘N.’
Dog panting to bring down
body temperature after
a run. Y
Penguins huddling together
to conserve heat in
cold environments. Y
Salmon living in salt water
drink several liters of water in
response to dehydration/having
too much salt in the body. Y
Kittens crying after their
mother leaves the room. N
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Student Assessment | New York Grade 7 Form A Segment B
16
18
The diagram above shows the circulatory system. After the heart pumps, which of the following
event(s) take place in the circulatory system?
Place a ‘C’ next to events that take place in this system, and place an ‘O’ next to events that take
place in other systems.
____ Blood moves through vessels.
____ Food that is taken in is broken down.
____ Amino acids are delivered to cells.
Carbon dioxide is removed from cells.
_B___ Food that is taken in is broken down.
Priya needs help writing a passage about the structures in different living things. There are three
areas in this passage that need your help. Circle the correct option to complete the passage.
Before the invention of the microscope, scientists did not know about cells. By observing
samples of many different animal and plant tissues under microscopes, scientists
discovered that all living things are made of [cells / organelles / DNA / a nucleus].
Because a single cell grows, develops, reproduces, responds to its environment, and uses
energy, scientists also know that [all living things are made of one type of cell / living
things are made of many cells / all living things have organs / living things may be made
of one cell].
The human body consists of different structures at different scales. There are about 5
liters of blood in the body. A drop of blood is visible to the unaided eye, but it is necessary
to use a microscope to see the [hundreds / thousands / millions / billions] of cells that
make up the drop of blood.
Animal cells have structures that perform specific functions in the cell. Mitochondria
are organelles that float within the cell. Because they produce most of the cell’s energy,
mitochondria are nicknamed the “powerhouse of the cell.”
Which of the following types of cells would have the greatest number of mitochondria?
c. muscle cell
Humans rely on sensory receptors to interpret messages about their surroundings. Sensory
receptors respond to mechanical, physical, or chemical stimuli. There are different kinds of
sensory receptors for detecting different kinds of stimuli. Chemoreceptors are specialized nerve
cells that pick up chemical stimuli, such as smells or the pH level of foods. Such stimuli tell the
brain and body to react a certain way to protect the body.
If a person in a controlled test is introduced to a safe chemical stimulus, what is the most logical
prediction you could make?
b. The person will plug the nose to shield the body from offensive chemical smells.
Below are four images of plants and sunlight.
Part A:
Which image shows how a plant’s stem could respond to sunlight?
B
Part 1 – Which body systems work together when Tom lifts a book off the table? Select all that
apply. Only choose systems directly involved in lifting the book.
a. nervous system
b. muscular system
c. excretory system
d. circulatory system
e. respiratory system
a. nervous system
b. muscular system