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Biology
What type of directional growth response occurs when a plant grows or bends toward a light source?
A
Thigmotropism
B
Geotropism
C
Phototropism
D
Hydrotropism
Correct Answer
C
Biology
Which powerful digestive enzyme is activated in the stomach to begin the chemical breakdown of proteins into smaller peptides?
A
Amylase
B
Lipase
C
Trypsin
D
Pepsin
Correct Answer
D
Biology
What term describes the random fluctuation of allele frequencies in a population over time, which typically has a much larger impact on smaller populations?
A
Gene flow
B
Natural selection
C
Genetic drift
D
Artificial selection
Correct Answer
C
Biology
Which class of proteins acts as the primary regulators of the cell cycle, controlling a cell's progression through various checkpoints?
A
Histones
B
Cyclins
C
Immunoglobulins
D
Actins
Correct Answer
B
Physics
What is the SI unit of momentum?
A
kgยทm/s
B
Joule
C
Newton
D
Pascal
Correct Answer
A
Physics
Which law explains the relationship between voltage, current, and resistance?
A
Newton's Law
B
Boyle's Law
C
Ohm's Law
D
Archimedes' Principle
Correct Answer
C
Physics
What is the boiling point of water at normal atmospheric pressure?
A
0ยฐC
B
50ยฐC
C
100ยฐC
D
150ยฐC
Correct Answer
C
Physics
Which device converts electrical energy into mechanical energy?
A
Generator
B
Electric Motor
C
Battery
D
Transformer
Correct Answer
B
Physics
What is the SI unit of electrical resistance?
A
Volt
B
Ohm
C
Ampere
D
Watt
Correct Answer
B
Physics
Which color bends the most during refraction?
A
Red
B
Green
C
Yellow
D
Violet
Correct Answer
D