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Duplicate of Keystone Exam Module 2 Flashcards | StudBud
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Duplicate of Keystone Exam Module 2
Duplicate of Keystone Exam Module 2
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Module 2 Review
Flashcards
35 cards
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Practice quiz
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Questions
35
Answers
1
Similar anatomical features that serve different functions are __ structures
Vagus
Homologous
Vestigial
Analogous
2
Which description is the best example of a population?
all of the organisms in every forest
all of the red foxes in every forest
all of the red foxes in a forest
all of the organisms in a forest
3
A human is composed of trillions of cells. Which process directly causes this large number?
respiration
cell division
circulation
cell mutation
4
What must be transmitted to new DNA strands during replication to maintain genetic information?
the sequence of phosphates from existing DNA strands
individual atoms from existing DNA strands
the sequence of bases from existing DNA strands
individual sugars from existing DNA strands
5
Which trait is an acquired trait?
red hair
bruise
brown eyes
dimples
6
Various bacteria, fungi, protists, vertebrates, and invertebrates all live in one common area.
biome
ecosystem
community
population
7
What happens to the unused organic matter at each trophic level within an energy pyramid?
It is absorbed by consumers
It is lost as ATP to the environment
It is used by consumers to make more food
It is recycled by decomposers
8
The graph represents changes to a trait. What most likely occurred at time 1?
There was an increase in the population of mice
Natural selection caused a new trait to be beneficial
A mutation produced a new allele for the gene
An invasive species with a new allele entered the population
9
Which outcome is most likely a result of selective breeding?
the formation of new genes
development of new ecosystems
an increase in number of favored genotypes
an increase in natural selection
10
The DNA of two brown eyed and blue eyed people is analyzed. What would they have in common?
. the location of the gene
the amount of pigment
the allele
the DNA sequence
11
Fertilization of an egg leads to a diploid cell. Which is true of a diploid cell?
There are 2 alleles per gene
There are two genes per chromosome
There are two genes per allele
There are two chromosomes per allele
12
Which of the following best describes an acquired trait of a cat?
chipped tooth because it develops during the organism's life
A.eye color because itis passed on from the prior generation
long tail because it develops during the life of the cat
fur length because itis passed on from the prior generation
13
Which of the following is the original source of energy in any ecosystem?
sunlight
plants
soil
sugar
14
Which term best describes the basic unit of inheritance passed from a parent to offspring?
traits
genotypes
phenotypes
genes
15
Which scenario would lead to the most rapid evolution of a new species of beetle?
small group of beetles finding an area with new food sources
a random mutation in one of the beetles
a nonnative predator of the beetle being introduced
A geographic barrier separating two populations of beetle
16
Which location would most likely have an aye-aye population with the greatest genetic variation
location 3
location 4
location 1
location 2
17
Which effect is most likely caused by nondisjunction during meiosis?
an extra chromosome
an increase in nuclei
increased survival benefits from traits
only two types of nitrogenous bases
18
Which list of events occurs during the interphase of the cell cycle?
a new membrane begins to form around the chromatids
the cytoplasm divides, creating two daughter cells
DNA replicates and proteins are produced
separation of sister chromatids
19
Two species of frog live in the same area. Which is the best evidence for a common ancestor?
the species' physical characteristics
the species' similar habitats
the species' similar diets
the species' mating behaviors
20
What type of evidence does the presence of homologous structures in plants provide?
Some animals are more closely related to plants
Insects and plants evolved around the same time
plants have evolved from a common ancestor
Only some plants are capable of photosynthesis
21
Leopards live and hunt alone. What is most likely the primary value of living alone?
increased survival rates with habitat loss
reduced competition for natural resources
greater genetic variability within the species
decreased space needs for the species
22
A cell goes through Meiosis. How are the daughter cells different than the parent cell?
the daughter cells contain half the amount of DNA
the daughter cells grow twice as fast
the daughter cells are larger
daughter cells are diploid
23
Very few plants grow at the bottom of oceans. Which scenario best explains this observation?
increased predation
decreased sunlight
increased competition
decreased oxygen
24
Which relationship best describes the interaction between ticks and a deer?
Mutualism
Commensalism
Parasitism
Competition
25
The amount of rainfall, intensity of UV radiation, and local climate are all examples of
Microbes
Vertebrates
Biotic factors
Abiotic factors
26
Squirrels, separated by the Colorado River, became unique species.Which mechanism caused this?
. geographic isolation
habitat preference
increased gene flow
behavioral isolation
27
A species of flower has 5 petals. One individual has 3 petals. What event most likely caused it
hightemperatures during the flower production season
mutationin the gene code for petal number in the parents DNA
DNAis inherited from two different parent plants
lowwater levels in the soil surrounding the parent plants
28
Genetic engineers designed corn with anti-fungal properties. How does this benefit farmers?
It makes each plant more resistant to disease.
It eliminates the processing needed to harvest corn
It lowers the cost of each acre of plants cultivated.
It increases the value of each acre of land cultivated.
29
Which statement best describes how invasive plants can negatively affect native herbivores?
can reduce the size of the native plant populations.
can increase the flow of energy through the ecosystem.
can attract other nonnative plants to the forest ecosystem.
can stop the life cycles of native herbivores.
30
Which mutation is the most likely to result in no effect to the phenotype of a cell?
Nonsense
Frame-Shift
Missense
Silent
31
An owl’s disk-shaped face helps direct sound waves into the owl’s ears, similar to a human ear
Homologous
Vestanologous
Vestigial
Analogous
32
Which of the following is an example of an observation?
A fly is caught in a spider web
Why does a spider spin a web?
A spider spins a web to catch its food.
What time of day is best for finding a spider web?
33
Which answer correctly distinguishes between the following statements?
1: Observation 2: Inference 3: Fact 4: Hypothesis
1: Inference 2: Observation 3: Theory 4: Fact
1:Theory 2: Hypothesis 3: Observation 4: Inference
1: Fact 2: Theory 3: Hypothesis 4: Observation
34
Which energy transfer most likely occurs between organisms in the food web?
from rabbit to fox
from mouse to grasshopper
from owl to fox
from sparrow to grass
35
Changing a single base causes an error that affects the next 500 amino acids in a protein.
silent mutation
frame-shift mutation
nonsense mutation
substitution
