Short Answers
What is the structure (shape) of DNA?
Double Helix
Reproduction in which genetic material from two parents unite is called
Sexual
Which of these describes the most fit individual?
a)capture more amounts of resources
b)have characteristics that help them capture prey and avoid being captured
c)have a larger number of viable offspring
d) all of the above
d) all of the above
Almost all fossils are discovered in
sedimentary rock
Which of the following might be an adaptation for picking insects out of tree bark?
a)a long pointed beak
b)webbed feet
c)a strong think beak
d)long claws
a)a long pointed beak
Explain two pieces of evidence that support the theory that species share a common ancestor.
1) Common Physical Structures (like arms)
2) DNA Sequences (common ancestor)
3)Embryology- if there are common stages of early development.
True/False
An adaptation is a trait that helps an organism to be more suited to its environment.
True
Which of the following gets energy by producing its own food?
a) bacteria b) algae
c) mushroom d) turtle
b) algae
Fossils provide evidence for evolution because
we can see extinct organisms and compare them to living species.
Which of the following is not a source of evidence of evolution?
a)adaptation
b)fossils
c)structural features
d) embryology
a)adaptation
Describe three ways a fossil can form.
1) ice; frozen and doesn't decay
2) stuck in sap or lave
3)buried in sedimentary rock
What is an organism that eats other organism?
Consumer
Which of the following is an example of decomposer?
a) fungus b)bacteria
c)earthworm d) all of the above
d) all of the above
Mose sedimentary rocks are a product of
particles of rocks
Which of the following provides structural evidence for evolution?
a) a fossil from an ancient time period shows an extinct animal similar to a modern animal.
b)a comparison of similar bones in the legs of a human, a dog and a bat.
c)a genetic analysis of two animals shows similar sequence of DNA
d)The embryos of two animals look similar at similar stages.
b)a comparison of similar bones in the legs of a human, a dog and a bat.
Name and explain what is happening in each of the four parts of natural selection.
1) Overpopulation (too many for environment)
2) Genetic Variation (mutation in DNA some trait better)
3) Selection (better traits survive and reproduce)
4) Adaptation (species carries better trait)
True/False
Darwin published his theory of natural selection immediately after returning from his voyage on the HMS Beagle.
False
Which of these describes a likely reason why a species would become extinct after a major environmental change?
a)There are not enough members of the species born with a trait necessary to survive the new environment
b)The environment changes mean fewer predators are around.
c) The change in the environment opens new resources with less competition.
d) There are more homes for the species in the changed environment.
a)There are not enough members of the species born with a trait necessary to survive the new environment
What is DNA composed of?
Amino Acids
Which of the following is NOT a way in which fossils are formed?
a) when parts of the animal are replaced by other materials
b)when the conditions for decay are absent
c) from the soft parts of animals
d)from the hard parts of animals
c) from the soft parts of animals
Describe five characteristics that all animals share.
1) Have cells (basic unit for life)
2)Need energy (to carry out living processes)
3)Reproduce (passon DNA)
4) Respond to environment (stimulus and response)
5) Grow and Mature (go thru stages of development)
a population that is adapted to its local environment.
A mushroom grows on a dead, rotting oak tree lying in the forest. Which of the following best describes the tree and mushroom?
a)tree and mushroom are both producers
b)tree and mushroom are both consumers
c) tree is a decomposer and mushroom is a producer
d) tree is producer and mushroom decomposer
d) tree is producer and mushroom decomposer
At some time during development, all animals with backbones have
a tail.
Which of the following does scientific evidence now indicates is true about evolution?
a) it has occured in the past but no longer is occurring?
b)it occurs now, but did not occur in the past
c)it occured in the past and continues to occur now.
c)it occured in the past and continues to occur now.