What is a living thing that provides a source of energy for a virus?
Host
100
Are bacterial cells Prokayotes or Eukaryotes?
Prokaryotes
100
What is the definition of a protist?
a eukaryote that cannot be classified as animals, plants, or fungi
100
What is the definition of a fungi.
eukaryotes that have cell walls, heterotrophs that feed by absorbing their food, and use spores to reproduce
100
What is a vaccine?
a substance(often an inactive or weakened virus/bacteria) introduced into the body to stimulate the production of chemicals that destroy specific disease-causing viruses and organisms.
200
What are organisms that live on or in a host and cause it harm?
Parasites
200
What is a flagellum?
A long whip-like structure that allows some bacteria to move.
200
What is a protozoan? Give an example.
a unicellular animal-like protist that is heterotrophic, and usually able to move to obtain food
200
What is Hyphae?
branching, threadlike tubes that make up the bodies of multicellular fungi that allow substances to move quickly and freely through the organism
200
What is an endospore?
a small, rounded, thick-walled, resting cell that forms inside a bacterial cell and can resist freezing, heating, and drying helping the bacteria survive for many years until conditions become suitable for growing and reproducing
300
What is a virus that infects bacteria called?
Bacteriophage
300
What are the three main shapes bacteria can be.
spherical, rodlike, or spiral?
300
How are protozoans are classified?
based on the way they move and live
300
How do fungi obtain food.
the fungus grows hyphae into the food source, then digestive chemicals ooze from the hyphae into the food, after the chemicals break down the food substances can be absorbed by the hyphae
300
What are five ways bacteria can help people?
oxygen production, food production, environmental recycling, environmental cleanup, and health and medicine
400
Describe the basic structure of all viruses.
What is genetic material surrounding by a protein coat?
400
What is Conjugation
Sexual reproduction where one bacterium transfers some genetic material to another bacterium resulting in bacteria with new combinations of genetic material ?
400
What three structures allow protozoans to move.
What are pseudopods, cilia, and flagella?
400
What is a fruiting body? Give an example.
the reproductive structures where fungi produce spores
400
What are the characteristics of Euglena?
a green unicellular algae (plant-like protist) that can also obtain food from the environment, has a flagellum for movement, can sense light with an eyespot, and move toward that light.
500
Why are virus proteins important?
help the virus attach to its host.
500
What are the three ways bacteria can obtain energy.
heterotroph, autotroph using sun energy, or autotroph using chemical energy
500
What is a contractile vacuole.
a structure that collects excess water inside the protozoan and expels it
500
What is budding?
The way unicellular yeast cells reproduce asexually.
500
What is a lichen?
a fungus and either algae or autotrophic bacteria that live together in a mutualistic relationship.