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