WorksheetsEvolution & Ecology
Total questions: 20
Worksheet time: 25mins
A. That invertebrate fossils are only found in sediments.
B. That modern forms of life may have evolved from earlier forms of life.
C. The fossils formed in layer B were formed before the fossils found in layer A.
D. The fossils found in layer A must be more complex than those found in layer B
A. Pigs evolved from reptiles.
B. Reptiles evolved from birds.
C. These organisms occupy the same niche.
D. These organisms share a common ancestor.
A. Mountain skinks will migrate to milder climates.
B. Coastal skinks will give live birth more frequently.
C. Coastal skinks will no longer mate with mountain skinks.
D. Mountain skinks will outcompete coastal skinks to extinction.
A. Both organisms have the same diet.
B. Both organisms live in a marine environment.
C. Both organisms are able to breed with each other.
D. Both organisms evolved from a common ancestor.
Which organism goes in the B position?
Which species is MOST closely related to species B and C?
species A
species D
species E and F
species G and H
Why do biological classification systems change over time?
genetic modification
new discoveries and technology
old classification systems are easier to follow
changes in climate and habitat
Which cellular organelle is thought to have evolved from a prokaryote that was able to use oxygen?
chloroplast
Golgi apparatus
mitochondrion
ribosome
How do invasive species affect an ecosystem?
they increase biodiversity
they decrease biodiversity
In what way is most of the nitrogen fixed by lightning made available for plants?
Moved by the wind to dry areas
Inside of bugs
Breathed in by birds
Carried by rain into the soil
What will most likely happen if a nonnative species is introduced into a stable ecosystem?
The native species will change their diet, and the ecosystem will remain stable.
The native species will move to another area, and the ecosystem will remain stable.
The native species will have to compete for resources with the nonnative species, and the ecosystem will become unbalanced.
The native species will share their food with the introduced species, and the ecosystem will become unbalanced.
The graph above represents the growth of a population in an area of....
infinite resources
limited resources
no competition
courtship.
The construction of a new coal-burning power plant would have the greatest impact on which environmental issue?
depletion of the ozone
production of acid rain
release of radiation
increase in deforestation
A field ecologist wants to determine the interactions of various populations of organisms living in a large grassland field. Which method is best for conducting this study?
consulting with local farmers about the diversity of organisms in the field
dividing the field in half, walking over it, counting organisms, and then doubling the numbers
walking over the entire field, collecting the organisms, and then compiling a total
observing the behaviors of different types of organisms several times during the year
