Charactoristics of Life
What is the study of life called?
What is biology?
This is where all energy on Earth ultimately comes from.
Answer: What is the sun?
Chemical signals like these are used by ants to communicate and mark trails.
What are pheromones?
This is what happens to a population as resources are depleted.
What is it decreases (or declines)?
This is the number one cause of extinction by humans.
What is habitat destruction (or habitat loss)?
This is the body’s ability to maintain stable internal conditions despite external changes.
What is homeostasis?
Photosynthetic organisms use this to get energy.
What is sunlight (or solar energy)?
Dr. Pavlov’s bell-ringing dog experiment is an example of this type of behavior.
What is learned behavior (or classical conditioning)?
This type of growth occurs when organisms have unlimited resources.
What is exponential growth?
The buildup of toxins in organisms as you move up the food chain is called this.
What is bioaccumulation?
These organisms make their own food using sunlight or chemicals.
What are autotrophs?
This is the percentage of energy transferred from one trophic level to the next.
What is 10%?
Animals establish and defend this to protect resources like food, mates, and shelter.
What is territory (or territoriality)?
This is the maximum population size an environment can support.
What is carrying capacity?
This phenomenon occurs when greenhouse gases trap heat in Earth’s atmosphere, causing temperatures to rise.
What is the greenhouse effect (or global warming)?
This is why humans sweat when they are hot.
What is to cool down the body/maintain homeostasis?
This type of consumer is ultimately last in every food chain and web.
What are decomposers?
In this symbiotic relationship, both organisms benefit.
What is mutualism?
When two organisms of the same species fight over resources, it’s called this.
What is competition (or intraspecific competition)?
Unlike most other organisms, humans can do this to modify their environment and increase carrying capacity.
What is use technology/medicine/agriculture (or build structures/alter habitats)?
This substance in your stomach helps maintain homeostasis by breaking down food and killing bacteria.
What is stomach acid (or hydrochloric acid/HCl)?
Humans are this type of consumer because we eat both plants and animals.
What are omnivores?
In this symbiotic relationship, one organism benefits while the other is harmed.
What is parasitism?
These relationships between predators and prey are necessary to control population sizes and maintain balance.
What are predator-prey relationships (or why do they keep prey populations in check/prevent overpopulation)?
Disease affects populations by doing this, as seen during the COVID-19 pandemic.
What is reducing population size/causing death/limiting growth?