way long ago
the two part naming system used to give each organism a universally accepted scientific name
binomial nomenclature
organisms that cause disease
pathogens
what are the essential functions of animals
movement, feeding, circulation, response, respiration, reproduction, excretion
how much of earth's surface is covered in water?
71%
___________________ are wetlands formed where rivers meet the ocean that serve as important nursery grounds.
estuaries
regional differences and different languages lead to species having different ____________
common names
eubacteria and archaebacteria were once grouped together in
Monera
bodily system that eliminates waste products from the body
excretory
how deep does sunlight penetrate in the marine ecosystem?
200 m
What is conservation?
the wise management of natural resources, including the preservation of habitats and wildlife
How do you write a scientific name?
Genus species
2 words: genus capitalized, species lowercase
Latin
italicized or underlined
organisms that can survive with or without oxygen
facultative aerobes
main characteristic of Cnidaria
stinging tentacles
what are abiotic and biotic factors? give examples
abiotic: nonliving; water, temperature, climate
biotic: living; trees, mice, mushrooms
What interactions occur within communities?
symbiosis, predation, competition
What is Linnaeus' system of classification?
Kingdom, Phylum, Class, Order, Family, Genus, Species
ways to identify prokaryotes
shape, movement, chemical nature of cell walls
What are the phyla of worms?
Annelida, Nematoda, Platyhelminthes
How does the sun strike the surface of the Earth at the equator vs at the poles?
directly at the equator
at a small angle at the poles
What are some threats to biodiversity?
habitat fragmentation; over hunting/harvesting; pollution; invasive species
Which two kingdoms did Linnaeus recognize?
plants and animals
what do all organisms have in common
they use DNA and RNA to pass on information
What are the four main groups of fungi
Ascomycota (sac fungi)
Deuteromycota (imperfect fungi)
Basidiomycota (club fungi)
Zygomycota (common molds)
What phylum is known for having spiny skin
Echinodermata
what is an invasive species?
introduced species that reproduce rapidly because their new habitat lacks the predators that would control their population.