Font size
WorksheetsLife, Taxonomy & Natural Selection
Total questions: 11
Worksheet time: 6mins
What will most likely happen over time if the beetle population lives in an ecosystem with many green, leafy trees? (Select all that apply)
There will be a decrease in the number of green beetles and an increase in the number of brown beetles.
There will be an increase in the number of green beetles and a decrease in the number of brown beetles.
The green beetles will be naturally selected over the brown beetles.
The beetle population will evolve over time until most of the beetles are gone.
Natural selection is a primary mechanism leading to evolutionary change. Which of the following is a trait that some living things possess in order to increase their reproductive success and prevent extinction.
overproduction of offspring
a decrease in mating seasons
increase asexual reproduction
waiting until an older age to begin reproduction
Based on the above information about the horse's evolution, the horse's ancestors probably were more likely to survive if they _____________.
used fewer toes
had four legs
had more toes
had longer tails
Rabbits lose a lot of their body heat through their ears. Every winter, more of the large-eared rabbits die than the others. Every summer, more of the short-eared rabbits die than the others. Predict what the resulting population will be.
There will be more rabbits with medium ears than any of the others.
There will be an equal number of rabbits of each ear size.
There will be fewer rabbits with large ears than any of the others.
There will be more rabbits with large ears than any others.
An organism's scientific name is a combination of its __________________________
genus name & species name
order name & species name
kingdom name & phylum name
genus name & class name
The earliest stage in the chart appears very similar for all five of these species. For example, all five embryos at this stage have gill slits and a large embryonic tail.
Analyze what these similarities most likely indicate.
All five species look very similar as adults
All five species share a distant common ancestor
All five species evolved in the past 100 years.
All five species evolved from a single mammalian ancestor.
Use the dichotomous key
house gecko
garter snake
king snake
green anole
Relate the classification levels to two organism's characteristics.
Two organisms that share classification levels can share only one characteristic per level.
Two organisms that share any classification level are identical in all their characteristics.
The more classification levels that two organisms share, the fewer characteristics the two organisms share.
The more classification levels that two organisms share, the more characteristics the two organisms share.
A scientist is analyzing tissue samples from an Asian elephant and an extinct woolly mammoth. When he sequences their DNA, he finds the genetic information of these animals to be about 99% identical, but not exactly the same. Can this information be used as evidence for evolution?
Yes, genetic information (DNA) can be a source of evidence for evolution.
No, the DNA sequences of the samples are not exactly the same.
No, genetic information (DNA) is never a source of evidence.
Yes, but only because elephants and mammoths look similar.
Crocodiles, bats, whales, and birds have similar limb bones. What do these similarities suggest?
Crocodiles, bats, whales, and birds evolved from a common ancestor.
A similar limb structure evolved in each species independently and by chance.
The common ancestor of birds and crocodiles was a whale.
Bats and crocodiles share an ancestor with whales, but not with birds.
After analyzing the data table, select the three animals that are the most closely related to each other.
Ring-tailed lemur
Racoon
Coati
Ring-tailed cat
