What two factors are considered the root cause of the majority of environmental issues we face today? Deforestation and pollution Size of human population and resource consumption Industrialization and urbanization Climate change and biodiversity loss

Size of human population and resource consumption

What is a mass extinction and what are the three criteria associated with it? A rapid event where a significant part of all life on earth goes extinct across habitats and taxonomic groups An event caused by human activities leading to habitat destruction A natural disaster affecting only marine life A gradual decline in species diversity over millions of years

A rapid event where a significant part of all life on earth goes extinct across habitats and taxonomic groups

How many mass extinctions has Earth experienced up until now, and what were their primary causes? Seven mass extinctions, caused by biotic factors Two mass extinctions, due to climate change Three mass extinctions, primarily due to volcanic eruptions Five mass extinctions, most likely caused by physical events like asteroid impacts

Five mass extinctions, most likely caused by physical events like asteroid impacts

How is the 6th mass extinction different from the previous five? It is caused by volcanic eruptions It is happening at a much faster rate and is caused by a single species, Homo sapiens It affects only marine life It is slower and caused by natural disasters

It is happening at a much faster rate and is caused by a single species, Homo sapiens

What are the two phases of the 6th extinction, and what led to extinctions in each phase? Phase 1: Industrial revolution; Phase 2: Climate change Phase 1: Deforestation; Phase 2: Urbanization Phase 1: Overfishing; Phase 2: Pollution Phase 1: Migration of Homo sapiens out of Africa; Phase 2: Invention of agriculture

Phase 1: Migration of Homo sapiens out of Africa; Phase 2: Invention of agriculture

Why is the invention of agriculture considered to be the most profound ecological event in our 3.7-billion-year history of life on Earth? Humans are no longer dependent primarily on local species for survival and are not tied to the local carrying capacity It caused a significant increase in biodiversity It resulted in the development of modern cities It led to the extinction of many species

Humans are no longer dependent primarily on local species for survival and are not tied to the local carrying capacity

What is the definition of carrying capacity, and how does it limit the growth of populations? The number of individuals the environment can sustain indefinitely, limited by factors like food, shelter, water, and mates The average number of offspring per individual The maximum population size a species can reach The total biomass an ecosystem can support

The number of individuals the environment can sustain indefinitely, limited by factors like food, shelter, water, and mates

How large is the human population now, and how would you depict its growth on a graph? When did the growth rate start to spike upwards? Around 6 billion people; growth spiked in the 1700s Around 10 billion people; growth spiked in the 2000s Around 8 billion people; growth spiked after the 1800 industrial revolution Around 5 billion people; growth spiked in the 1900s

Around 8 billion people; growth spiked after the 1800 industrial revolution

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Biology - Ecology

user_pereira_de_andr Created by 9 mon ago

Cards in this deck(36)

What two factors are considered the root cause of the majority of environmental issues we face today?

What is a mass extinction and what are the three criteria associated with it?

How many mass extinctions has Earth experienced up until now, and what were their primary causes?

How is the 6th mass extinction different from the previous five?

What are the two phases of the 6th extinction, and what led to extinctions in each phase?

Why is the invention of agriculture considered to be the most profound ecological event in our 3.7-billion-year history of life on Earth?

What is the definition of carrying capacity, and how does it limit the growth of populations?

What happens to the growth of a population or species when you remove the limits placed on it by the local environment?

Agriculture allowed humans to 'escape' the constraints of the _____ carrying capacity but we are still constrained by the _____ carrying capacity.

How large is the human population now, and how would you depict its growth on a graph? When did the growth rate start to spike upwards?

What is a greenhouse gas, and what are two prevalent GHGs contributing to climate change?

What does it mean for a system to be in energy balance?

For the earth's system to be in energy balance, the earth has to radiate 240 watts/m² of energy back out to space. What prevents the earth from being in energy balance today?

What is the IPCC and what is its purpose?

What are fossil fuels, and what are they made of?

Aside from our current crisis, has climate change happened before during our planet's 4.6-billion-year history?

What historical 'event' corresponds with the precipitous increase in greenhouse gases (GHGs)?

How do we know that the increase in CO2 is from human activities, such as burning fossil fuels?

What is the normal range of variability in CO2 concentrations over the past 650,000 years?

What is the concentration of CO2 today?

What is the relationship between CO2 concentration and temperature?

How has the ocean acted as a heat sink?

How would the melting of sea ice represent a tipping point?

How does an increase in water vapor create a positive feedback cycle, and what are the implications for weather?

What are four changes to our food system due to the industrialization of food, and what are the health implications?

How are refined grains different from whole grains, and why are they less nutritious?

How has the diversity of our diet changed, and why do we see this trend? Provide examples.

How do big agriculture and the use of pesticides/fungicides/fertilizer affect soil health and the nutrition of our food?

Describe the 'Western Diet' and its key characteristics.

Why is it incorrect to say that today's increase in chronic disease is due to our increased life expectancy?

Who was an early critic of the industrialization of our food?

Who were the control groups in Weston Price's studies, and why did he travel the world to find them?

What were the results of Weston Price's examination of populations not eating a Western diet?

What commonality did Weston Price find among traditional diets despite their diversity?

What are some recommended ways to escape the Western diet?

How does regenerative agriculture help us to increase the nutrition of our food and deal with climate change?

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