b3 Flashcards
what a communicable disease
its infectious and spreads from person to person(direct)
whats a pathogen
pathogens are microorganisms that enter the body and cause disease
can plants and animals be infected btw pathogens
yes
what is bacteria
very small living cells that reproduce rapidly
what are viruses not
they are not cells but much smaller
what is a protist
a single celled eukaryote
fungi…
comes in different shapes and are single celled
what are eukaryotes
complex cells
what can pathogens be spread through
water
air
direct contact
what do pathogens cause
communicable disease
what are the 3 viral diseases
measles
HIV
TMV
how is measles spread
spread by droplets from an infected persons sneeze
How is HIV spread
spread by sexual contact
what does TMV affect
plants
wht is a example of a fungal disease
rose black spot