biology 1
Large group of ecosystems that share the same climate and have similar types of communities
Biome
True
Non living things in an organism's environment are called the abiotic factors true or false
False
A biological _____________ is a group of interacting populations that occupy the same area at the same time
community
An important characteristic of any population is its growth rate. The ______________________ (PGR)
explains how fast a given population grows.
Population growth rate!
The group of plants and animals found in one habitat
ecosystem
TRUE OR FALSE - Asexual reproduction occurs only in plants
FALSE
TRUE OR FALSE- Asexual production produces new offspring that have the same genetic information as the parent.
TRUE
These worms and aquatic insects eat fragments of dead matter in an ecosystem, returning nutrients to the soil, air and water
Detritivores
These include herbivores, carnivores, omnivores and detritivores
Heterotrophs
The natural home of a group of living things
habitat
Food made by plants using sunlight and water
photosynthesis
The ability of any organism to survive when subjected to abiotic factors or biotic factors is called
tolerance
Food chains, food webs and ecological ____________ are models used to show how energy moves through ecosystems
pyramids
These eat plant and animal matter. They are thus placed on the trophic level
omnivores
Scientific study of all the interrelationships between organisms and their environment
Ecology
These worms on land and aquatic insects living on stream bottoms eat fragments of dead matter in an ecosystem returning nutrients to the soil, air and water
detritivores
Exchange of matter through the biosphere where chemicals are changed at the molecular level is called the what cycle?
biogeochemical cycle
This cycle consists of constant circulation of the element __________ through living things and the atmosphere
Nitrogen
The trophic level or also called the ____ level is the level at which living things are positioned within a food chain
energy
A symbiotic relationship in which one organism benefits at the expense of another organism is
parasitism
The total living mass of living matter at each trophic level
Biomass
78%