BIO 5101 C655 Zoology
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Free BIO 5101 C655 Zoology Questions
What does ethology study in relation to animal behavior?
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The genetic makeup of animals
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The evolutionary history of animals
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The adaptive significance of animal behaviors
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The anatomical structures of animals
Explanation
Explanation:
Ethology studies the adaptive significance of animal behaviors, focusing on how behaviors contribute to survival and reproduction in natural environments. It examines both instinctive and learned behaviors, analyzing how they have evolved to solve ecological challenges. This field links behavioral traits to evolutionary pressures, ecological contexts, and the overall fitness of organisms within their habitats.
Correct Answer:
The adaptive significance of animal behaviors
Explain how ecological pressures can lead to changes in animal behavior over time.
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They create competition for resources, leading to aggressive behaviors.
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They cause animals to migrate to new habitats without any behavioral changes
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They influence the development of traits that enhance survival and reproduction.
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They have no significant impact on animal behavior
Explanation
Explanation:
Ecological pressures, such as predation, competition for resources, and environmental changes, can shape animal behavior over generations. Behaviors that improve survival and reproductive success are naturally selected, leading to adaptive behavioral traits. For example, foraging strategies, mating rituals, or social behaviors may evolve in response to these pressures, demonstrating how ecological factors drive behavioral adaptation and contribute to species evolution.
Correct Answer:
They influence the development of traits that enhance survival and reproduction
All of the following are true of homologous structures EXCEPT
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they demonstrate common ancestry
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an example is the wing of the bat and a person's arm
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an example is the wing of the bat and the wing of a fly
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they are not the same thing as analogous structures
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an example is the whale's lateral fin and a person's arm
Explanation
Explanation:
Homologous structures are anatomical features that are similar in structure due to shared ancestry, even if their functions differ. For example, a bat's wing, a human arm, and a whale's lateral fin share a similar skeletal framework. However, the wing of a bat and the wing of a fly are analogous structures, not homologous, because their similarity arises from convergent evolution rather than common ancestry.
Correct Answer:
an example is the wing of the bat and the wing of a fly
What are the primary levels of organization in zoology?
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Cells, tissues, organs, and systems
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Species, populations, communities, and ecosystems
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Genotypes, phenotypes, traits, and adaptations
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Habitats, niches, biomes, and biospheres
Explanation
Explanation:
The primary levels of organization in zoology describe the hierarchical structure of living organisms, starting from the smallest functional units to complex systems. Cells form tissues, tissues combine into organs, and organs work together in organ systems. Understanding these levels helps scientists study how animals function, maintain homeostasis, and interact with their environment, providing a framework for biological and physiological research.
Correct Answer:
Cells, tissues, organs, and systems
In general, the main distinction between dispersal and migration is that:
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Migration is long-distance, whereas dispersal is short-distance
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Dispersal is only done by young animal, whereas migration can be young or old
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Migration is a circumnavigation, whereas dispersal is tangent to the natal site
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Dispersal is a one-way movement, whereas migration is a repeated movement
Explanation
Explanation:
Dispersal refers to the one-way movement of an organism from its birthplace to a new location, often to reduce competition, inbreeding, or resource scarcity. Migration, in contrast, involves repeated, often seasonal, movements between specific areas for feeding, breeding, or climate adaptation. This distinction helps ecologists understand patterns of population distribution, gene flow, and resource utilization.
Correct Answer:
Dispersal is a one-way movement, whereas migration is a repeated movement
Explain why entomology is considered significant in the field of zoology
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It helps in understanding mammalian behavior
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It provides insights into the ecological roles and diversity of insects
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It focuses solely on the anatomy of insects
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It is primarily concerned with the classification of vertebrates
Explanation
Explanation:
Entomology, the scientific study of insects, is significant in zoology because insects play vital roles in ecosystems as pollinators, decomposers, and as part of the food chain. Studying insects helps scientists understand their diversity, population dynamics, and ecological functions. Insights gained from entomology can inform agriculture, disease control, and conservation efforts, making it a critical subfield for understanding broader ecological interactions and the health of ecosystems.
Correct Answer:
It provides insights into the ecological roles and diversity of insects
Ornithology is the discipline dealing with
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mammals
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flying insects
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birds
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reptiles
Explanation
Explanation:
Ornithology is the branch of zoology that focuses on the study of birds. It examines their anatomy, physiology, behavior, ecology, and evolutionary relationships. By studying birds, ornithologists gain insights into migration patterns, mating behaviors, communication, and adaptations to diverse environments, contributing to conservation efforts and a deeper understanding of avian biodiversity.
Correct Answer:
birds
Host-parasite relationship that is characterized by mutual benefit to host and parasite:
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Probiosis
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Evasion
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Parasitism
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Symbiosis
Explanation
Explanation:
Symbiosis refers to a close and long-term interaction between two different species where both benefit from the relationship. In contrast, parasitism benefits the parasite at the expense of the host. Symbiotic relationships can include examples such as pollinators and flowering plants or gut bacteria and their animal hosts, highlighting mutual advantages in survival and reproduction.
Correct Answer:
Symbiosis
If a researcher is observing the mating rituals of a bird species in its natural habitat, which branch of zoology are they primarily utilizing, and why is this approach significant?
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Comparative anatomy, because it compares different species' mating structures
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Ethology, because it examines behavior in a natural context
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Animal physiology, because it studies the biological processes involved
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Zoography, because it focuses on the geographic distribution of species
Explanation
Explanation:
By observing mating rituals in the natural habitat, the researcher is utilizing ethology. This approach is significant because it studies animal behavior in the context in which it naturally occurs, allowing scientists to understand instinctive and learned behaviors, social interactions, and reproductive strategies. Studying behavior in its ecological context provides insights into evolutionary adaptations and species survival.
Correct Answer:
Ethology, because it examines behavior in a natural context
Explain how comparative anatomy supports the theory of evolution.
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By demonstrating that all species have unique structures.
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By providing evidence of anatomical similarities that suggest common ancestry
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By showing that anatomical features are solely based on environmental factors
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By proving that evolution does not occur in nature.
Explanation
Explanation:
Comparative anatomy supports the theory of evolution by revealing anatomical similarities among different species that indicate common ancestry. Homologous structures, which share a similar form but may serve different functions, provide evidence that species have evolved from shared ancestors. These anatomical comparisons allow scientists to reconstruct evolutionary lineages and understand how organisms have diversified over time.
Correct Answer:
By providing evidence of anatomical similarities that suggest common ancestry
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