WorksheetsEvolution
Total questions: 11
Worksheet time: 10mins
Which of the following is NOT true about natural selection?
It depends on both inheritance and variation
It explains how environments affect which organisms live and reproduce
It ensures that only the biggest and the strongest organisms survive
It results in adaptations that improve an organism’s chances of survival
It ensures that only the smartest organisms survive
If a mouse with light fur moves onto dark soil, it will mutate its genes so that its fur will be dark.
true
false
If a mouse with light fur moves onto land with dark soil, it most likely will not pass its genes on to the next generation due to natural selection (the theory of evolution).
true
false
Random mutations occur in gametes (sperm and egg cells). These random mutations are not passed on from parent to offspring, but these random mutations contribute to variation in the population (such as mice with light fur having an offspring with dark fur).
true
false
Natural selection (the theory of evolution) selects against organisms with advantageous traits- organisms with advantageous traits are least likely to survive and have offspring.
true
false
Survival of the fittest means that organisms with advantageous traits have fitness (have offspring) and are able to pass their genes onto the next generation.
true
false
Fitness means surviving, but not reproducing.
true
false
What does “the fittest” mean in an evolutionary sense?
The strongest
The longest lived
The smartest
The most reproductively successful
The best able to avoid being eaten
What molecular evidence do we have that supports that all life is related?
All life on Earth has the same set of mutations in its genes
All life on Earth has DNA
All life on Earth has the same number of DNA base pairs
All life on Earth stores its genetic material inside the nuclei of its cells
Any of these
Which statement better explains the concept of evolutionary success?
Individuals that inherit advantageous variations will outcompete others for resources and pass these variations to the next generation
Individuals that acquire advantageous traits over their lifetime will survive better and pass those traits on to their offspring
Individuals in a reduced gene pool can withstand environmental changes and will survive more frequently than other individuals
Individuals that develop advantageous physical traits will outcompete others for resources, and pass these traits to their offspring
In a population of snails the individuals with the thickest shells survive and reproduce more than those with thinner shells. Assuming shell thickness is a heritable trait, what should happen to the mean shell thickness in a population of snails over time?
Increase
Decrease
Remain the same
There would be no pattern
