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Biosphere (Honors)

Across
A symbiotic relationship in which one member of the association benefits while the other is neither helped nor harmed
Plants (like soybeans, clover, and alfalfa) that live in symbiotic relationships with nitrogen fixing bacteria are called
A group of individuals that belong to the same species and live in the same area
Every food chain has a _________ at the beginning
An element found in DNA, does NOT enter the atmosphere as it cycles through the ecosystem
Type of interaction in which organisms live together in a group for protection and share food, grooming and child-care
An organisms ________includes it’s physical location plus all of it’s biological interactions in that place
Made up of the parts of the planet including land, water or atmosphere in which all life exists
Organisms ____ or “address” describes the area where it lives.
The type of symbiosis in which both organisms benefit from living in close association is called
Process in which water evaporates from the surface of green plant leaves, is one way water molecules return to the atmosphere
An organism that eats only meat
An interaction in which one organism captures and feeds on another
"Lunch" for a predator
Bacteria and _________ are decomposers, an important group of heterotrophs that break down organic matter and return nutrients to ecosystems
Obtains energy by eating only plants
Atoms like carbon, nitrogen, and phosphorus are reused and passed throughout parts of the biosphere in ________ ___________
Down
______________factor is a requirement that is in short supply--keeps the population in check
Process in which nitrogen gas from the atmosphere is converted into ammonia by bacteria that live in the soil and on the roots of plants called legumes
Type of symbiosis in which one organism benefits and the other is harmed
A group of organisms so similar to one another that they can breed and produce fertile offspring
Process in which energy from sunlight is used by green plants to convert carbon dioxide and water into oxygen and carbohydrates
factors are all the non-living factors that shape ecosystems such as climate, precipitation, wind, nutrient availability, soil type, and sunlight.
Another name for a CONSUMER
A process in which energy from the chemical bonds of inorganic molecules is used to produce carbohydrates in the absence of light
Organisms that can make their own food are called producers or ___________
Each step in food chain or food web is called a _______
All the different populations that live together in a certain area form
The science that studies the interactions of organisms with each other and with their environment
Captures and eats a prey animal
Eats both plants and animals