Plate Tectonics
How do Convergent Boundaries move?
Towards eachother
How many cells are produced in mitosis?
Two identical cells.
Who is known as the father of natural selection?
Charles Darwin.
What is a mutation?
A: A change in DNA sequence.
What type of natural hazard is caused by tectonic plate movement?
Earthquakes
What is formed when an oceanic plate converges with a continental plate?
A subuction zone and volcanoes
How many cells are produced in meiosis?
Four genetically different cells.
What does “survival of the fittest” mean?
Organisms best suited to their environment are more likely to survive and reproduce.
Are all mutations harmful?
No, some are neutral or beneficial
What natural hazard can follow an underwater earthquake?
Tsunami
What type of boundary causes earthquakes along faults like the San Andreas Fault?
Transform boundaries.
Which type of cell division is used for growth and repair?
Mitosis
What is an adaptation?
A trait that increases an organism’s chances of survival.
What can cause mutations?
Radiation, chemicals, and errors during DNA replication.
What natural hazard involves molten rock reaching the surface?
Volcanic eruption.
What is the theory that explains the movement of Earth’s plates?
Plate Tectonics.
Which type of cell division is used to produce gametes?
Meiosis
What role does variation play in natural selection?
It provides the differences among individuals that selection acts upon.
How can mutations affect proteins?
They can change the amino acid sequence, altering the protein’s function.
What weather-related hazard involves rotating columns of air?
Tornado
What geological feature is created at a divergent boundary under the ocean?
Mid-ocean ridge.
What is the major difference between mitosis and meiosis in terms of chromosome number?
Mitosis keeps the chromosome number the same; meiosis halves it.
What is the result of natural selection over many generations?
Evolution of a species.
What type of mutation affects offspring?
Mutations in reproductive cells.
How can humans reduce the impact of natural hazards?
By building stronger structures, early warning systems, and emergency preparedness.