12 Questions
Which of the following cannot evolve?
Individual structures
How do biologists interpret the similarities between human arms, bat wings, and whale flippers?
They are homologous structures that evolved from a common ancestral structure
Natural selection acts on which of the following to affect the evolution of a population?
Phenotypes
Which type of selection is most likely to occur when a population of finches has individuals with a range of beak sizes that specialize in different food sources?
Disruptive selection
Which organism has the highest fitness in the evolutionary sense?
A rat that has twice as many healthy young in each litter compared to the average member of its species
Which scenario is most likely to lead to allopatric speciation?
A population of squirrels is divided by a river
What is a unique characteristic of echinoderms not found in any other animal group?
Water vascular system
Which of the following is NOT a major trend in terrestrial plant evolution?
Animal-assisted reproduction
What does it mean that the genetic code is 'highly conserved'?
It is almost the same in all organisms
What animals lack a 'true' coelom?
Flatworms only
What are the three main parts of a seed?
Seed coat, stored food, embryo
Which of the following lists the correct proposed time sequence (earliest to most recent) in the evolution of plants?
Seedless vascular plants -> gymnosperms -> angiosperms
Test your knowledge on evolution and how biologists interpret similarities in different structures. Explore questions about evolution, dominant species, and bone similarities in different species.
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