Here are some biology question I need to know:
Vocabulary- match the correct term with the definition.
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5 points
An inherited characteristic that increases an organism's chance of surviving. Competition between two or more individuals of the same species How well an organism can survive and reproduce in its environment Competition between two or more individuals of different species Transfer of genes from one population to another due to the migration of individuals into or out of a population
Intraspecific competition
Adaptation
Fitness
Interspecific competition
Gene flow
Intraspecific competition
Adaptation
Fitness
Interspecific competition
Gene flow
Which of the following events would decrease competition for resources in an ecosystem? Hint- think which one is intraspecific competition?
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1 point
a disease reduces the population of rabbits in a grassland area
a drought reduces the amount of water available to an ecosystem
a fire has killed off a portion of the vegetation
many offspring are produced in a single year
Which of the following ideas is supported by Darwin's observation of local variation among tortoises in the Galapagos Islands?
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1 point
artificial selection
adaptation
acquired characteristics
tendency towards perfection
Consider the following scenario: Some fish in a murky underground lake have lighter scales than the others. This makes it slightly harder for the lighter fish to escape detection by predators, but most light-colored fish live long enough to reproduce. A natural event separates the dark-scaled fish from their light-scaled cousins, and as a result, a new species of dark-scaled fish emerges. Which statement accurately describes the scenario?
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1 point
The fish survived because of a non-genetic advantage.
The fish experienced an evolutionary change because of genetic drift.
The fish experienced an evolutionary change because of natural selection.
The fish survived because of an inheritable advantage.
The combined genetic information of all members of a particular population forms a
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1 point
gene pool
niche
phenotype
population
A mutation is any
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1 point
change in the DNA sequence
change in the DNA sequence that leads to an advantageous outcome
change in the DNA sequence that leads to a disadvantageous outcome
change in an organisms environment
The image below represents a map of four islands. Each island is home to a distinct species of lizard. Assuming that all four lizard species share a common ancestor, which of the following is most likely to be true?
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1 point
Captionless Image
The lizard species on Island A is more closely related to the lizard species on Island D than to the lizard species on Island B.
The lizard species on Island A is more closely related to the lizard species on Island B than to the lizard species on Island D.
The lizard species on Island A is morphologically identical to the lizard species on Island D.
The lizard species on Island A is more closely related to the lizard species on Island C than to the lizard species on Island B.
Use the image below to help you answer the question: Darwin’s finches have different beaks in terms of size and shape to be able to eat different food sources like insects, nectar, and seeds. Cactus finches have longer, more pointed beaks to probe cactus flowers compared to their relatives, the ground finches. If a plant disease killed a large portion of the cacti on the Galapagos islands, what would the future populations of finches look like in terms of beak size and shape? Use your knowledge of natural selection to determine which option is most likely.
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1 point
Captionless Image
Ground finches would survive and pass on their beaks, but they would mate with the remaining cactus finches, creating a new hybrid that is somewhere between short versus long and narrow versus wide.
Cactus finches would compete for food with ground finches and exhibit resource partitioning, so the beaks of future generations would not change
Ground finches would survive and pass on their shorter and wider beaks, so there would be a higher proportion of finches in future generations that have short and wide beaks
Cactus finches would compete for food with ground finches and exhibit competitive exclusion, so the beaks of future generations would be similar to whichever finch outcompetes the other.
A random change in a small population's allele frequency is known as
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1 point
a gene pool
genetic drift
variation
fitness
If a mutation introduces a new skin color in a lizard population, which factor might determine whether the frequency of the new allele with increase?
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1 point
how many other alleles are present
whether the mutation makes some lizards more fit for their environment than other lizards
how many phenotypes the population has
whether the mutation was caused by nature or human intervention
Select the statement below that is true regarding altruism and adaptive group behavior:
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1 point
Darwin studied how adaptive group behavior evolved.
Herding is an example of adaptive group behavior.
Altruism always leads to a greater success for the altruistic individual.
When two populations no loner interbreed, what is the result?
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1 point
genetic equilibrium
reproductive isolation
stabilizing selection
artificial selection
Why is genetic variation among individuals beneficial?
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1 point
It is not beneficial
Genetic variation staves off extinction because it creates a fit population.
Genetic variation leads to more new traits in the population which means evolution can occur faster.
More genetic variation means higher rate of survival versus species that have less genetic variation.
Which is the BEST prediction of what might happen to the moth population over time?
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1 point
Captionless Image
The shades will have little or no effect on the moth population.
The lighter-shaded moths will be selected out of the population.
The darker-shaded moths will be selected out of the population.
The lighter-shaded moths will become darker-shaded
The table shows the derived traits of five plant groups. Which trait was the earliest to appear among the plant groups?
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1 point
Captionless Image
flowers
seeds
stomata
vasculature
Similar DNA sequences in genes can be evidence of
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2 points
binomial nomenclature
mutations
common ancestry
different anatomy
An inherited characteristic that increases an organism's chance of surviving - Adaptation
Competition between two or more individuals of the same species - Intraspecific competition
How well an organism can survive and reproduce in its environment - Fitness
Competition between two or more individuals of different species - Interspecific competition
Transfer of genes from one population to another due to the migration of individuals into or out of a population - Gene flow
Which of the following events would decrease competition for resources in an ecosystem? - a disease reduces the population of rabbits in a grassland area
Which of the following ideas is supported by Darwin's observation of local variation among tortoises in the Galapagos Islands? - adaptation
Consider the following scenario: Some fish in a murky underground lake have lighter scales than the others. This makes it slightly harder for the lighter fish to escape detection by predators, but most light-colored fish live long enough to reproduce. A natural event separates the dark-scaled fish from their light-scaled cousins, and as a result, a new species of dark-scaled fish emerges. Which statement accurately describes the scenario? - The fish experienced an evolutionary change because of natural selection.
The combined genetic information of all members of a particular population forms a - gene pool
A mutation is any - change in the DNA sequence
Assuming that all four lizard species share a common ancestor, which of the following is most likely to be true? - The lizard species on Island A is more closely related to the lizard species on Island D than to the lizard species on Island B.
If a plant disease killed a large portion of the cacti on the Galapagos islands, what would the future populations of finches look like in terms of beak size and shape? - Ground finches would survive and pass on their shorter and wider beaks, so there would be a higher proportion of finches in future generations that have short and wide beaks.
A random change in a small population's allele frequency is known as - genetic drift
If a mutation introduces a new skin color in a lizard population, which factor might determine whether the frequency of the new allele with increase? - whether the mutation makes some lizards more fit for their environment than other lizards
Select the statement below that is true regarding altruism and adaptive group behavior: - Herding is an example of adaptive group behavior.
When two populations no longer interbreed, what is the result? - reproductive isolation
Why is genetic variation among individuals beneficial? - Genetic variation staves off extinction because it creates a fit population.
Which is the BEST prediction of what might happen to the moth population over time? - The lighter-shaded moths will be selected out of the population.
The table shows the derived traits of five plant groups. Which trait was the earliest to appear among the plant groups? - vasculature
Similar DNA sequences in genes can be evidence of - common ancestry