Lessons 3 And 4 Flashcards
(15 cards)
Virus
A tiny nonliving particle that enters and than reproduces in a living cell.
Host
An organism that provides a source of energy or a suitable environment for a virus to live.
Vaccine
A substance used in vaccination that consists of pathogens, such as viruses, that have been weakened or killed but can still trigger the body to produce chemicals that destroy the pathogens.
Bacteria
Single called organisms also known as prokaryotes that lack a nucleus.
Parasite
An organism that benefits by living with on or in a host in a parasitism interaction
Protists
A eukaryotic organism that cannot be classified as an animal, plant, or fungus
Resistant
Able to work against or hold off an opposing force.
Tissue
A group of similar cells that perform a specific function.
Vascular plants
A plant that has true vascular tissue for transporting materials
Nonvascular plants
A low growing plant that lacks true vascular tissue for transporting materials
Vertebrate
An animal with a backbone
Invertebrate
An animal without a backbone
Organ
A body structure that is composed of different kinds of tissue that work together
Mammal
A vertebrate whose body temperature is regulate by its internal heat, and that has skin covered with fur or hair, and glands that produce milk to feed its young.
Symmetry
A balance of body parts
