Biodiversity
Are there more species near the equator or poles?
Equator
True or False: Populations with high genetic diversity are likely to be more resilient.
True
Why did China institute a one child policy?
Not enough resources for population
What are 2 examples of physical hazards?
Volcanos, earthquakes, tsunamis, fire, drought
What is the name of a chemical that causes cancer?
Carcinogen
What is the smallest level of taxonomy?
Species
What is it called when a species disappears from the entire planet?
Extinction
What is one of the lasting effects of the one child policy in China?
Many more men than women, not enough people to care for aging population
Smoking and eating fatty food are examples of what kind of hazard?
Social
What is a mass of snow that slides down a slope called?
Avalanche
What taxonomic groups are given in the scientific name of an organism?
Genus, species
Which ecosystem is more diverse: a wheat field or the intertidal zone?
intertidal zone
Who has a bigger ecological footprint- India or the US? Give one reason why.
US, use more resources, food not grown locally, more waste
What is the name of a virus or bacteria that causes disease?
Pathogen
What other physical hazard can accompany an earthquake?
Tsunami, landslide
The gray wolf (Canis lupus), the coyote, (Canis latrans), and the domestic dog (Canis familiaris) all share what level of taxonomy?
Genus
What is a species that is at serious risk of extinction called?
Endangered
Are there generally lower fertility rates in developing or developed countries?
Developed
What disease is DDT very effective in reducing?
Malaria
What is the name of the toxic compound using for insulation in houses that is now known to cause lung cancer?
Asbestos
What group of organisms on earth has the most described species?
Insects
What is a reason species are endangered?
Habitat loss, hunting, outcompeted
What climates have the highest population density?
Tropical/ temperate- easier to live, grow food
What neurotoxin affects the children of Flint, MI?
Lead
What age group do teratogens affect?
Embryos, fetuses, cause birth defects
Why is habitat fragmentation harmful for populations?
Less resources, lower genetic diversity
What is environmentally responsible travel to protected areas to promote conservation and provide economic benefits called?
Ecotourism
Is a population with many more older adults than young people going to grow or decline?
Decline
What are 2 negative environmental effects of DDT?
Indiscriminate killing of insects, fish, and bird mortality.
How are most people exposed to lead?
Lead pipes in houses, kids eating lead paint chips
What is the leading cause of biodiversity loss?
Habitat change and loss
What kind of diversity is differences in DNA among individuals?
genetic
What are two ways census data is used?
Genealogy, legislative seats, city planning, federal money allocation
What is the name of the international agency in charge of responding to emerging diseases?
World Health Organization (WHO)
What are 2 chemical hazards commonly found in houses?
Lead, radon, VOCs, carbon monoxide, asbestos, formaldehyde
Why don't scientists know exactly how many species are on earth?
Unexplored places, bacteria
Some conservation biologists focus on areas where the greatest number of unique species can be protected with the least amount of effort. These areas are called what?
Why do some nations (like Germany) have negative growth rates?
People not having as many children for social and economic reasons
What is the study of disease in human populations called?
Epidemiology
What is an example of a neurotoxin?
Methylmercury, lead, mercury, some pesticides
What is it called when habitat is broken up into smaller pieces surrounded by unsuitable habitat?
Habitat fragmentation
What is one thing that laws protecting endangered species prohibit?
killing animals, trade products made from animals, cutting down habitats
What are two environmental impacts of more wealty societies?
Consume more food, produce more waste, larger homes require more energy, more resources to ship non-local goods
Some diseases (like breast cancer) are caused by environmental hazards as well as what other factor?
Genetics
What is the radioactive gas that is released naturally from uranium in rocks called?
Radon
Some ecosystems recover quickly from environmental change.. What is this ability to bounce back called?
Resilience
List 2 of the 4 causes of biodiversity loss.
Habitat change and loss, invasive species, pollution, poaching and overharvesting
What are two environmental impacts of poorer societies?
Land over use, deforestation, poor water quality due to incomplete sewage treatment
What are 2 factors that allow emerging disease to spread quickly?
Plane travel, little resistance, no vaccines developed
What is it called when a toxin is increasingly concentrated as it moves up in the food chain?
Biomagnification