Factors
What is an ABIOTIC factor?
What is a BIOTIC factor?
a non-living factor; a living factor
What is dynamic equilibrium?
When the birth rate is equal to the death rate
How many people die per year from diseases?
56.9 million per year
The song "ring around the rosie" is relevant to the lesson because...
The Bubonic Plague(Black Plague)
Which one is an abiotic factor?
A)Tree
B)Butterfly
C)Virus
D)fungus
C)Virus
What does a J curve show?
It shows that the birth rate is more than the death rate, exponential growth
A bacteria, virus, or microorganisms that cause a disease is a...?
Pathogen
What is a population?
A community made of organisms that are the same species
Which is abiotic factor that limits population growth? (there can be more than one)
A)Temperature
B)Coral Population
C)Natural disasters
D)Algae Population
A) Temperature
C)Natural Disasters
When resources are limited and the population doesn't continue to grow that is called?
Limited Growth
How can disease impact populations?
How can population size impact disease?
Disease causes populations to drop and slows recovery. Larger populations allow for disease to spread quickly between many organisms.
How did Dutch elm disease spread, and to where did it spread?
It was spread by beetles, and it went from France to Ohio and eventually spread across most of America
In what are some biotic factors that can limit the population growth?(state at least 3)
Algae population, disease that aren't viruses, plankton shortage, coral population, and predators
Explain the difference between exponential and logistic growth
Exponential: population has unlimited resources, so the population grows faster. Showed as a J curve
Logistic: population growth decreases when it reaches the carrying capacity. Showed as a S curve
What did Dutch elm disease cause?
The clog in the vascular tissue in trees prevented any water movement
What essay did Malthus write
Principle of Population
How do abiotic and biotic factors impact population growth?
Some biotic factors benefit from the abiotic factors(like plants need sunlight) so the population growth increases, but when biotic factors are faced with factors like, predators, diseases, or unfavorable abiotic factors like natural disasters, then that can change the population growth by bringing it down
What was Thomas Malthus theory about the human population?
Humans would reproduce uncontrollably or double every 25 years , while food would only be able to grow in small amounts, leading to human death
How many people did the Spanish flu kill?
about 20-50 million
What was the Irish Potato Famine?
1846-51:about 1 million irish people died of starvation, disease, and violence, and by a fungus found in potatoes called phytophthora infestans. They could have had access to other food but an english policy made by Charles Trevelyan didnt want to give or help any resources