biology 1
Large group of ecosystems that share the same climate and have similar types of communities
Biome
We look the same on the inside because we share an ancestor, even if we use our limbs for different things—like a human arm and a whale’s flipper. What are we?
Homologous Structures
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
A bird, a bat, and a butterfly all have wings to fly, but they didn't get them from a common ancestor. These "copycat" traits are called analogous structures. What process created us?
Convergent Evolution
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
I am a sudden change in a gene or chromosome that can introduce new variation into a population. What am I?
Mutation
These include herbivores, carnivores, omnivores and detritivores
Heterotrophs
The natural home of a group of living things
habitat
I am a structure that was once useful to your ancestors but now serves no purpose, like your tailbone or an ostrich's wings.
Vestigial Structure
We are the same type of frog, but I like to mate in April and my cousin prefers June. Because our "clocks" don't match, we never have offspring together. What type of isolation am I?
Temporal Isolation.
We all started as the same species, but we moved to different environments. Now we look totally different—like a polar bear and a grizzly bear—but our DNA shows we are close cousins. What am I?
Divergent Evolution
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/Decomposers
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
A single group of finches arrives on a new chain of islands. Because there are so many different foods available (seeds, insects, cactus), they quickly split into many different species with specialized beaks. What am I?
Adaptive Radiation