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WorksheetsBiology Do-Now Feb 2/23
Total questions: 12
Worksheet time: 12mins
Speciation can best be defined as:
Getting bigger, stronger, and faster over the course of a lifetime
Descent with modification (change) from a pre-existing species
The ability of an organism to survive, reproduce, and pass on its genes to its offspring
The divergence (separation) of a new species from an existing species
As a species branches out and each population adapts to new locations, they eventually become so different they are now new species.
When are they no longer considered the same species?
They can no longer breed successfully
They do not occupy the same geographic or ecologic regions
Their DNA and physical features differ greatly
All of these things are used to determine species
Which species belong in the clade for fur and mammary glands?
Gorilla only
Rat and gorilla
Lizard, alligator, robin, rat, and gorilla
Hagfish, salmon, and frog
Which species belong in the clade for claws or nails?
Gorilla only
Rat and gorilla
Lizard, alligator, robin, rat, and gorilla
Hagfish, salmon, and frog
Who is the only species that does NOT have a jaw?
Hagfish
Lizard
Gorilla
Salmon
What derived feature is unique to the bird and crocodile?
Vertebrae
Bony skeleton
Four limbs
Eggs with shells
What derived feature do all these organisms share?
Vertebrae
Bony skeleton
Four limbs
Eggs with shells
Which is most related to crocodiles?
Sharks
Birds
Amphibians
Primates
What features does the amphibian have?
Vertebrae
Vertebrae and bony skeleton
Vertebrae, bony skeleton, and four limbs
Vertebrae, bony skeleton, four limbs, and amniotic egg
The ability of an organism to survive, reproduce, and pass on its genes to its offspring is:
Physical Fitness
Natural Selection
Evolution
Biological Fitness
Dark furred mice blend in better with their environment than light furred mice. Therefore, the dark furred mice live longer and are more likely to reproduce and pass on their genes. This would be an example of:
Gene Flow
Non-Random Mating
Genetic Drift - Bottleneck Effect
Natural Selection
Two bird populations of the same species live in different areas. The birds of one population have blue feathers, while the birds of another population have red feathers. One of the blue birds migrates to the red birds and reproduces with them, thus spreading its genes among that population. This would be an example of:
Natural Selection
Genetic Drift
Gene Flow
Interspecies Breeding
