Bobo
What is the primary function of the circulatory system?
A. to transport nutrients and remove wastes from the body
B. to produce blood cells
C. to digest food
A. to transport nutrients and remove wastes from the body
This organ produces a compound called bile that helps aid in digestion.
A. liver
B. throat
C. pancreas
A. liver
How do tendons contribute to the skeletal system?
A. They attach muscles to bones, allowing movement.
B. They connect bones to other bones.
C. They protect bones from impact.
A. They attach muscles to bones, allowing movement.
Which statement best describes transform boundaries?
A. Two tectonic plates move away from each other.
B. Two tectonic plates move towards each other.
C. Crust is neither created or destroyed.
C. Crust is neither created or destroyed.
How does artificial selection differ from natural selection?
A. Artificial selection occurs in the wild, while natural selection occurs in controlled environments.
B. Artificial selection is driven by environmental factors, while natural selection is driven by human choices.
C. Artificial selection is purposeful and guided by humans, while natural selection is a natural process driven by environmental factors.
C. Artificial selection is purposeful and guided by humans, while natural selection is a natural process driven by environmental factors.
What is the main role of the heart in the circulatory system?
A. to filter blood
B. to pump blood throughout the body
C. to warm the blood
B. to pump blood throughout the body
This organ stores bile until it is needed in the digestive tract.
A. liver
B. throat
C. gallbladder
C. gallbladder
Which skeletal system disorder is characterized by a side-to-side curve of the spine?
A. osteoporosis
B. osteomalacia
C. scoliosis
C. scoliosis
Which sentence does not describe a super volcano?
A. Pressure from magma builds up to create an explosion.
B. They erupt frequently.
C. Their eruptions can have worldwide impacts.
B. They erupt frequently.
Which of the following is an example of natural selection?
A. farmers breeding cows to produce more milk
B. scientists genetically modifying crops to be pest-resistant
C. insects developing resistance to a new pesticide
C. insects developing resistance to a new pesticide
What occurs in the pulmonary circulation?
A. Blood delivers oxygen to the muscles.
B. Blood is cooled down.
C. Blood receives oxygen in the lungs.
C. Blood receives oxygen in the lungs.
Which type of muscle controls our digestive system?
A. smooth
B. cardiac
C. digestive
A. smooth
The body contains ____________ bones.
A. 300
B. 80
C. 206
C. 206
In which type of boundary do tectonic plates move towards each other?
A. divergent
B. transform
C. convergent
C. convergent
Which of the following is an example of artificial selection?
A. humans cultivating roses to produce larger and more colorful flowers
B. wild rabbits developing thicker fur in colder climates
C. birds migrating earlier in response to climate change
A. humans cultivating roses to produce larger and more colorful flowers
Where does systemic circulation send blood?
A. from the heart to the lungs and back
B. from the heart to all parts of the body except the lungs
C. only to the lower body
B. from the heart to all parts of the body except the lungs
Which muscle type is primarily involved in controlling the heartbeat?
A. smooth
B. cardiac
C. digestive
B. cardiac
Evidence suggests the Earth is approximately how old?
A. 4.6 billion years old
B. 4.6 million years old
C. 100 billion years old
A. 4.6 billion years old
If scientists wanted to study the youngest rock at a mid-ocean ridge, where should they look?
A. at the rocks that make up the smooth seafloor
B. at the rocks that are at the top of the ridge itself
C. All rocks on the ocean floor are the same age.
B. at the rocks that are at the top of the ridge itself
Which statement best describes the role of adaptations in natural selection?
A. Adaptations occur suddenly and are not passed down to offspring.
B. Adaptations are favorable traits that help organisms survive and reproduce.
C. Adaptations can be beneficial or harmful.
B. Adaptations are favorable traits that help organisms survive and reproduce.
Which chamber of the heart receives oxygen-rich blood from the lungs?
A. right atrium
B. right ventricle
C. left atrium
C. left atrium
What is the purpose of tendons?
A. attach to our internal organs to control breathing and heartbeat
B. connect nerves to muscles
C. attach the muscle to bones and allow for movement
C. attach the muscle to bones and allow for movement
Which type of fossil is not an actual part of an organism, but evidence it existed, like footprints, nests, or eggs?
A. index fossil
B. trace fossil
C. amber fossil
B. trace fossil
What is the primary function of a watershed?
A. It collects and filters sunlight.
B. It divides territories between different ecological zones.
C. It collects and channels water from higher to lower elevations into a common outlet.
C. It collects and channels water from higher to lower elevations into a common outlet.
Why are dog breeds an example of artificial selection?
A. They’ve evolved naturally over millions of years.
B. They adapt to their environment without human intervention.
C. Humans have selectively bred them for specific traits.
C. Humans have selectively bred them for specific traits.
Anemia in the circulatory system is primarily a result of:
A. too much plaque in arteries
B. high blood pressure
C. lack of healthy red blood cells to carry oxygen
C. lack of healthy red blood cells to carry oxygen
What is the role of fascia in the muscular system?
A. It secretes enzymes that break down muscle tissue.
B. It surrounds and connects muscles to help reduce friction.
C. It stores excess nutrients for muscle energy.
B. It surrounds and connects muscles to help reduce friction.
What type of fossil would scientists use to determine the ages of rock layers?
A. trace fossils
B. strata
C. index fossils
C. index fossils
Which of the following are examples of surface water pollution?
A. sewage discharged into a river
B. trash swept into a stream from a storm drain
C. All of the above.
C. All of the above.
Why is the example of the peppered moth in London significant in the study of natural selection?
A. It shows how human intervention can change a species over time.
B. It provides evidence of how environmental changes can lead to changes in traits within a population.
C. It demonstrates the effects of artificial selection in an urban environment.
B. It provides evidence of how environmental changes can lead to changes in traits within a population.
The digestive system is a group of organs working together to __________.
A. break down food into smaller pieces
B. push food through the system
C. turn food into nutrients for energy, growth, and cell repair.
C. turn food into nutrients for energy, growth, and cell repair.
Which property allows muscles to return to their original shape after stretching?
A. contractibility
B. adaptability
C. elasticity
C. elasticity
Which of the following do geologists NOT use to determine the age of rocks
and fossils?
A. relative dating
B. superposition
C. seafloor spreading
C. seafloor spreading
What is the primary effect of oil pollution on surface water?
A. It increases the water's oxygen level.
B. It creates a barrier on the water’s surface, harming aquatic life.
C. It decreases water temperature.
B. It creates a barrier on the water’s surface, harming aquatic life.
Which method of thermal energy transfer can travel through matter?
A. conduction
B. convection
C. all of the above
C. all of the above
This part of the digestive system secretes saliva which helps to chemically break down food.
A. teeth
B. tongue
C. mouth
C. mouth
What does the term "maximus" indicate about a muscle when it appears in its name?
A. The muscle is the smallest of a group.
B. The muscle is the largest of a group.
C. The muscle has the most endurance.
B. The muscle is the largest of a group.
In which of Earth’s layers do convection currents occur, causing tectonic plates to move?
A. inner Core
B. outer Core
C. mantle
C. mantle
What is a significant consequence of surface water pollution due to agricultural runoff?
A. increased water temperatures
B. reduction in recreational water activities
C. increased sediment that can harm aquatic life and increase treatment costs
C. increased sediment that can harm aquatic life and increase treatment costs
What method of thermal energy transfer occurs because of temperature differences between gasses or liquids?
A. conduction
B. convection
C. radiation
B. convection
Which statement best describes the function of the esophagus in the digestive system?
A. It grinds and mixes food into a liquid form.
B. It carries food and liquids from the pharynx to the stomach using muscle contractions.
C. It produces digestive enzymes that break down proteins.
B. It carries food and liquids from the pharynx to the stomach using muscle contractions.
What is the role of the appendicular skeleton?
A. to protect the brain, heart, and lungs
B. to facilitate body movements
C. to produce blood cells
B. to facilitate body movements
Which statement about tectonic plates is NOT true?
A. Tectonic plates move 1–3 meters per year.
B. Tectonic plates can bump into each other.
C. Earth’s crust is divided into tectonic plates.
A. Tectonic plates move 1–3 meters per year.
Thermal pollution primarily affects water bodies by:
A. introducing toxic substances
B. increasing the clarity of water
C. changing the water’s temperature, affecting aquatic life
C. changing the water’s temperature, affecting aquatic life
Which of the following is an example of a compound?
A. helium (He)
B. sodium (Na)
C. carbon dioxide (CO2)
C. carbon dioxide (CO2)
The stomach helps to digest food with _____________ processes.
A. chemical
B. mechanical
C. chemical and mechanical
C. chemical and mechanical
This part of the bone produces new blood cells.
A. spongy bone
B. compact bone
C. bone marrow
C. bone marrow
At which type of plate boundary to the tectonic plates move apart, causing new
crust to form?
A. convergent
B. merging
C. divergent
C. divergent
Which of the following best describes the role of water treatment plants in managing watershed impacts?
A. They treat polluted water to make it safe for human use and improve environmental health.
B. They increase the amount of freshwater available naturally.
C. They directly remove pollutants from soil.
A. They treat polluted water to make it safe for human use and improve environmental
What method of thermal energy transfer is the direct transfer of heat between particles within a substance that are in direct contact?
A. conduction
B. convection
C. radiation
A. conduction