Podcast
Questions and Answers
What is the correct hierarchy of taxonomic groups, from largest to smallest?
What is the correct hierarchy of taxonomic groups, from largest to smallest?
- Subspecies (correct)
- Family (correct)
- Species (correct)
- Genus (correct)
Tigers living in warm climates have thinner coats of fur than tigers living in cool climates. This is a result of?
Tigers living in warm climates have thinner coats of fur than tigers living in cool climates. This is a result of?
genetic diversity
What is the easiest component of biodiversity to measure?
What is the easiest component of biodiversity to measure?
species diversity
Which is the most direct way in which biodiversity can provide a source of income?
Which is the most direct way in which biodiversity can provide a source of income?
The latitudinal gradient is a natural pattern in which species diversity generally?
The latitudinal gradient is a natural pattern in which species diversity generally?
Which is the highest level of biodiversity?
Which is the highest level of biodiversity?
High levels of biodiversity tend to?
High levels of biodiversity tend to?
Which product is often derived from the natural environment?
Which product is often derived from the natural environment?
Taxonomists are the scientists who classify species.
Taxonomists are the scientists who classify species.
Species richness generally increases toward the poles.
Species richness generally increases toward the poles.
An ecosystem is considered stable if it is both resistant and resilient.
An ecosystem is considered stable if it is both resistant and resilient.
The sum total of all organisms in an area, taking into account the variety of species, their genes, their populations, and their communities, is called ____________________.
The sum total of all organisms in an area, taking into account the variety of species, their genes, their populations, and their communities, is called ____________________.
The differences in DNA among individuals within species and populations is called ____________________.
The differences in DNA among individuals within species and populations is called ____________________.
Archaeological evidence shows that in case after case, a wave of ____________________ followed whenever humans arrived on islands and continents.
Archaeological evidence shows that in case after case, a wave of ____________________ followed whenever humans arrived on islands and continents.
____________________ is the number or variety of species in the world or in a particular region.
____________________ is the number or variety of species in the world or in a particular region.
A scientific study counted more ant species near the equator than near the North Pole, which demonstrates a natural pattern called the ____________________.
A scientific study counted more ant species near the equator than near the North Pole, which demonstrates a natural pattern called the ____________________.
If current trends continue, the modern geologic era, known as the Quaternary period, may see the extinction of?
If current trends continue, the modern geologic era, known as the Quaternary period, may see the extinction of?
The Sikhote-Alin Mountains, and the Siberian tigers living on them, are separated from other mountain regions in which the tigers could live. The mountains are an example of a(n)?
The Sikhote-Alin Mountains, and the Siberian tigers living on them, are separated from other mountain regions in which the tigers could live. The mountains are an example of a(n)?
The disappearance of a particular population from a given area, but not of the entire species globally, is called?
The disappearance of a particular population from a given area, but not of the entire species globally, is called?
A species that is at serious risk of extinction is called a(n)?
A species that is at serious risk of extinction is called a(n)?
By far, the biggest cause of biodiversity loss today is?
By far, the biggest cause of biodiversity loss today is?
In recent decades, extinction rates have been significantly lower than normal.
In recent decades, extinction rates have been significantly lower than normal.
Based on current data about species population trends, some scientists claim we are in the middle of Earth's sixth?
Based on current data about species population trends, some scientists claim we are in the middle of Earth's sixth?
The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) and the Convention on Biological Diversity are examples of?
The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) and the Convention on Biological Diversity are examples of?
To manage, protect, and reintroduce threatened and endangered species are the goals of?
To manage, protect, and reintroduce threatened and endangered species are the goals of?
Which of the following is an example of a method for managing whole ecosystems and habitats?
Which of the following is an example of a method for managing whole ecosystems and habitats?
Relieving a nation from repaying some of the money it owes other nations in exchange for protecting its biodiversity is called a?
Relieving a nation from repaying some of the money it owes other nations in exchange for protecting its biodiversity is called a?
In the United States, what is the major law that protects biodiversity?
In the United States, what is the major law that protects biodiversity?
A treaty is a(n)?
A treaty is a(n)?
One way that zoos and aquariums help increase wildlife populations is through?
One way that zoos and aquariums help increase wildlife populations is through?
At the international level, the United Nations has facilitated several treaties to promote biodiversity.
At the international level, the United Nations has facilitated several treaties to promote biodiversity.
Study Notes
Taxonomy and Biodiversity
- Taxonomic hierarchy arranges groups from largest to smallest as follows: family, genus, species, subspecies.
- Biodiversity includes species diversity, genetic diversity, and ecosystem diversity, with ecosystem diversity being the highest level.
Biodiversity Measurement and Implications
- Species diversity is the most measurable component of biodiversity.
- Genetic diversity accounts for variations in DNA among individuals within species.
- High biodiversity enhances ecosystem stability and resilience.
Biodiversity Patterns and Trends
- Latitudinal gradient shows species diversity increasing towards the equator, not poles.
- Extinction events often occur following human arrival in new areas, leading to widespread extinctions.
- Current trends suggest the potential for over half of all species to become extinct during the Quaternary period.
Conservation and Protection Efforts
- Ecotourism serves as a direct income source linked to biodiversity.
- Species survival plans aim to manage, protect, and reintroduce endangered species.
- CITES and the Convention on Biological Diversity are key treaties aimed at biodiversity protection.
Human Impact on Biodiversity
- The main cause of biodiversity loss today is habitat change and fragmentation.
- Misconception exists that extinction rates have decreased; they are actually significantly higher than normal.
- The United States' Endangered Species Act is a major law for biodiversity protection.
Conservation Strategies
- Debt-for-nature swaps relieve nations from debt in exchange for biodiversity protection.
- Mapping biodiversity hotspots helps manage ecosystems and habitats effectively.
- Captive breeding programs by zoos and aquariums are crucial for increasing wildlife populations.
Studying That Suits You
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Description
Test your knowledge on key concepts from Science Chapter 7 with these flashcards. Covering topics such as taxonomic hierarchy, biodiversity, and genetic diversity, this quiz is essential for mastering the material. Perfect for review before exams!
