Biological Diversity Quiz

When different species compete for the same limited resources, leading to reduced survival rates for one or both species.

The unique role an organism plays within its ecosystem, including its habitat, food source, and interactions with other species.

The distribution pattern of a species throughout its geographic range, influenced by factors like habitat availability and competition.

A process where organisms with advantageous traits survive, reproduce, and pass on those traits, leading to changes in a population over time.

The process of selecting and breeding organisms for desirable traits, often leading to fast changes in a species.

The ability of a gene to mask the expression of another gene when both are present.

A gene that is only expressed when a dominant allele is not present.

The process of cell division that creates two identical daughter cells from one parent cell. Each daughter cell receives a complete set of chromosomes.

The process of cell division that creates four gametes (sex cells) from one parent cell. Each gamete receives half of the chromosomes from the parent cell.

The continuous flow of electrons through a conductor.

The difference in electrical potential between two points in a circuit.

The rate at which electrical current flows through a conductor.

A device that converts chemical energy into electrical energy. It consists of two electrodes immersed in an electrolyte.

A material that allows the easy flow of electrons, like copper wire.

A material that resists the flow of electrons, like rubber.

A component that uses electricity to perform a task, like a light bulb.

A device that controls the flow of electricity in a circuit, like a switch.

A component that resists the flow of electricity, like a resistor.

The difference in electrical potential between two points in a circuit, measured in volts (V).

The relationship between voltage (V), current (I), and resistance (R) in a circuit: V = I x R, R = V / I, I = V / R.

A thermocouple is a temperature-measuring device made of two dissimilar metals in contact. When these metals are heated, a difference in their electrical conductivity causes electrical current to flow between them, generating a voltage that is proportional to the temperature difference.

The switch controls the flow of electricity to both the motor and the light bulb. The variable resistor allows the user to control the brightness of the light bulb by adjusting the amount of current flowing through it. The motor is connected in parallel to the light bulb, so both receive power simultaneously.

When the switch is closed, chemical energy stored in the battery is converted to electrical energy. This electrical energy flows through the circuit, powering the light bulb and causing it to emit light and heat.

The fuse protects the circuit from excessive current. The stereo and fuse are connected in series, so they share the same path for current. The speakers are connected in parallel, allowing each speaker to receive power independently.

Conductivity refers to how easily a substance allows electricity to pass through it. The higher the current measured, the more conductive the substance is.