Q. What is the primary reason that gases can be compressed more than liquids or solids?
A.
High density
B.
Low density
C.
Large intermolecular spaces
D.
Strong intermolecular forces
Show solution
Solution
Gases can be compressed more than liquids or solids because they have large intermolecular spaces.
Correct Answer:
C
— Large intermolecular spaces
Learn More →
Q. What is the primary reason that gases fill their containers? (2023)
A.
High density
B.
Low density
C.
High kinetic energy
D.
Low kinetic energy
Show solution
Solution
Gases fill their containers due to high kinetic energy, which allows particles to move freely and spread out.
Correct Answer:
C
— High kinetic energy
Learn More →
Q. What is the primary resource extracted from the Tar Sands in Canada?
A.
Coal
B.
Natural Gas
C.
Oil
D.
Uranium
Show solution
Solution
The primary resource extracted from the Tar Sands in Canada is oil, specifically bitumen.
Correct Answer:
C
— Oil
Learn More →
Q. What is the primary role of a team leader in the context of team formation?
A.
To make all decisions independently
B.
To facilitate collaboration and guide the team
C.
To enforce strict rules
D.
To evaluate team members' performance
Show solution
Solution
The primary role of a team leader is to facilitate collaboration and guide the team towards achieving their goals while ensuring that all voices are heard.
Correct Answer:
B
— To facilitate collaboration and guide the team
Learn More →
Q. What is the primary role of auxins in apical dominance? (2019)
A.
Promote lateral bud growth
B.
Inhibit lateral bud growth
C.
Stimulate root growth
D.
Enhance leaf expansion
Show solution
Solution
Auxins inhibit the growth of lateral buds, maintaining apical dominance and directing growth towards the apex.
Correct Answer:
B
— Inhibit lateral bud growth
Learn More →
Q. What is the primary role of chloroplasts in plant cells?
A.
Energy production
B.
Photosynthesis
C.
Cell division
D.
Respiration
Show solution
Solution
Chloroplasts are the organelles in plant cells where photosynthesis occurs, converting light energy into chemical energy.
Correct Answer:
B
— Photosynthesis
Learn More →
Q. What is the primary role of gibberellins in seed germination? (2023)
A.
Inhibit growth
B.
Promote enzyme production
C.
Stimulate root growth
D.
Enhance photosynthesis
Show solution
Solution
Gibberellins promote enzyme production that breaks down stored food in seeds, facilitating germination.
Correct Answer:
B
— Promote enzyme production
Learn More →
Q. What is the primary role of potassium in plants? (2020)
A.
Photosynthesis
B.
Water regulation
C.
Protein synthesis
D.
Cell division
Show solution
Solution
Potassium plays a crucial role in water regulation and osmotic balance in plants, helping to maintain turgor pressure.
Correct Answer:
B
— Water regulation
Learn More →
Q. What is the primary role of red blood cells?
A.
To fight infections
B.
To transport oxygen
C.
To clot blood
D.
To produce hormones
Show solution
Solution
Red blood cells are primarily responsible for transporting oxygen from the lungs to the body's tissues.
Correct Answer:
B
— To transport oxygen
Learn More →
Q. What is the primary role of root hairs in plants?
A.
Photosynthesis
B.
Water absorption
C.
Nutrient storage
D.
Gas exchange
Show solution
Solution
Root hairs increase the surface area for water absorption from the soil.
Correct Answer:
B
— Water absorption
Learn More →
Q. What is the primary role of synovial fluid in joints? (2023)
A.
To provide nutrients
B.
To lubricate the joint
C.
To absorb shock
D.
To connect bones
Show solution
Solution
Synovial fluid lubricates the joint, reducing friction and allowing for smooth movement.
Correct Answer:
B
— To lubricate the joint
Learn More →
Q. What is the primary role of the cytoskeleton? (2022)
A.
Energy production
B.
Cell shape and movement
C.
Protein synthesis
D.
DNA replication
Show solution
Solution
The cytoskeleton provides structural support, helps maintain cell shape, and facilitates cell movement.
Correct Answer:
B
— Cell shape and movement
Learn More →
Q. What is the primary role of the digestive system?
A.
To circulate blood
B.
To break down food and absorb nutrients
C.
To protect against diseases
D.
To regulate body temperature
Show solution
Solution
The digestive system breaks down food into smaller components for nutrient absorption.
Correct Answer:
B
— To break down food and absorb nutrients
Learn More →
Q. What is the primary role of the sepal in a flower? (2023)
A.
Attract pollinators
B.
Protect the flower bud
C.
Support the flower
D.
Produce pollen
Show solution
Solution
Sepals protect the flower bud before it opens and can also support the flower.
Correct Answer:
B
— Protect the flower bud
Learn More →
Q. What is the primary role of the spinal cord in the nervous system? (2022)
A.
To process sensory information
B.
To coordinate voluntary movements
C.
To transmit signals between the brain and the body
D.
To store memories
Show solution
Solution
The spinal cord transmits signals between the brain and the rest of the body, playing a crucial role in reflex actions.
Correct Answer:
C
— To transmit signals between the brain and the body
Learn More →
Q. What is the primary role of the tendons in the muscular system? (2020)
A.
Connect muscles to bones
B.
Store energy
C.
Facilitate blood flow
D.
Protect muscles
Show solution
Solution
Tendons connect muscles to bones, allowing for movement when muscles contract.
Correct Answer:
A
— Connect muscles to bones
Learn More →
Q. What is the primary role of the xylem in flowering plants? (2023)
A.
Transport of food
B.
Transport of water
C.
Storage of nutrients
D.
Photosynthesis
Show solution
Solution
Xylem is responsible for the transport of water and minerals from the roots to the rest of the plant.
Correct Answer:
B
— Transport of water
Learn More →
Q. What is the primary role of white blood cells? (2022)
A.
Transporting oxygen
B.
Clotting blood
C.
Fighting infections
D.
Transporting nutrients
Show solution
Solution
White blood cells are crucial for the immune response, helping to defend the body against infections and foreign invaders.
Correct Answer:
C
— Fighting infections
Learn More →
Q. What is the primary role of xylem in plants? (2022)
A.
Transport of nutrients
B.
Transport of water
C.
Photosynthesis
D.
Storage of food
Show solution
Solution
Xylem is responsible for the transport of water and dissolved minerals from the roots to the rest of the plant.
Correct Answer:
B
— Transport of water
Learn More →
Q. What is the primary site of nutrient absorption in the digestive system? (2023)
A.
Mouth
B.
Stomach
C.
Small intestine
D.
Large intestine
Show solution
Solution
The small intestine is the primary site for the absorption of nutrients from digested food.
Correct Answer:
C
— Small intestine
Learn More →
Q. What is the primary site of nutrient absorption in the human body? (2020)
A.
Stomach
B.
Large intestine
C.
Small intestine
D.
Esophagus
Show solution
Solution
The small intestine is the primary site for the absorption of nutrients due to its large surface area.
Correct Answer:
C
— Small intestine
Learn More →
Q. What is the primary site of protein digestion? (2023)
A.
Mouth
B.
Stomach
C.
Small intestine
D.
Large intestine
Show solution
Solution
The stomach is the primary site of protein digestion, where pepsin begins the breakdown of proteins.
Correct Answer:
B
— Stomach
Learn More →
Q. What is the primary site of respiration in plant cells? (2021)
A.
Chloroplast
B.
Mitochondria
C.
Cytoplasm
D.
Nucleus
Show solution
Solution
The primary site of respiration in plant cells is the mitochondria, where ATP is produced through cellular respiration.
Correct Answer:
B
— Mitochondria
Learn More →
Q. What is the primary source of energy for an ecosystem? (2020)
A.
Wind
B.
Water
C.
Sunlight
D.
Soil
Show solution
Solution
Sunlight is the primary source of energy for most ecosystems, as it drives photosynthesis in plants.
Correct Answer:
C
— Sunlight
Learn More →
Q. What is the primary source of energy for most ecosystems? (2020)
A.
Geothermal energy
B.
Wind energy
C.
Solar energy
D.
Nuclear energy
Show solution
Solution
Solar energy is the primary source of energy for most ecosystems, driving photosynthesis in plants.
Correct Answer:
C
— Solar energy
Learn More →
Q. What is the primary source of energy for photosynthesis? (2023)
A.
Chemical energy
B.
Solar energy
C.
Thermal energy
D.
Mechanical energy
Show solution
Solution
Solar energy is the primary source of energy for photosynthesis, driving the process.
Correct Answer:
B
— Solar energy
Learn More →
Q. What is the primary source of energy for the Earth's climate system?
A.
The Moon
B.
The Sun
C.
Geothermal energy
D.
Nuclear energy
Show solution
Solution
The primary source of energy for the Earth's climate system is the Sun.
Correct Answer:
B
— The Sun
Learn More →
Q. What is the primary source of energy for the Earth? (2022)
A.
Geothermal energy
B.
Solar energy
C.
Nuclear energy
D.
Wind energy
Show solution
Solution
The primary source of energy for the Earth is solar energy, which drives weather, climate, and photosynthesis.
Correct Answer:
B
— Solar energy
Learn More →
Q. What is the primary source of energy in a balanced diet?
A.
Proteins
B.
Carbohydrates
C.
Fats
D.
Vitamins
Show solution
Solution
Carbohydrates are the primary source of energy in a balanced diet, providing 4 calories per gram.
Correct Answer:
B
— Carbohydrates
Learn More →
Q. What is the primary source of genetic variation in a population? (2022)
A.
Mutation
B.
Natural Selection
C.
Gene Flow
D.
Genetic Drift
Show solution
Solution
Mutation is the primary source of genetic variation in a population, as it introduces new alleles into the gene pool, which can then be acted upon by natural selection.
Correct Answer:
A
— Mutation
Learn More →
Showing 20461 to 20490 of 28599 (954 Pages)