SBI3U – Biodiversity Question and
answers verified to pass 2025
bacteria are members of the domain - correct answer eubacteria and archaea
6 groups of domain bacteria - correct answer proteobacteria
green bacteria
cyanobacteria
gram-positive
spirochaete
chlamydia
coccus - correct answer sphere
spirillum - correct answer spiral
bacillus - correct answer rod-shaped
diplo - correct answer two
staphylo - correct answer cluster
strepto - correct answer chain
beneficial bacteria - correct answer digests food, make vitamins
, viruses - correct answer dont belong to any of the 6 kingdoms
cant survive outside a living cell
no organelles
they have DNA and RNA
lytic cycle - correct answer 1) attachment
2) entry
3) synthesis
4) assembly
5) release
when the host cell bursts and releases the viruses, it dies
lysogenic cycle - correct answer viral dna enters the cell and becomes part of
the host dna.
this new unit is called provirus
the viral dna stays DORMANT
is later activated and breaks off host DNA and enters lytic cycle
viroids - correct answer small infectious pieces of RNA. plant pathogen
prions - correct answer infectious particles made of abnormally shaped
protein
how pathogens are transmitted - correct answer contact
answers verified to pass 2025
bacteria are members of the domain - correct answer eubacteria and archaea
6 groups of domain bacteria - correct answer proteobacteria
green bacteria
cyanobacteria
gram-positive
spirochaete
chlamydia
coccus - correct answer sphere
spirillum - correct answer spiral
bacillus - correct answer rod-shaped
diplo - correct answer two
staphylo - correct answer cluster
strepto - correct answer chain
beneficial bacteria - correct answer digests food, make vitamins
, viruses - correct answer dont belong to any of the 6 kingdoms
cant survive outside a living cell
no organelles
they have DNA and RNA
lytic cycle - correct answer 1) attachment
2) entry
3) synthesis
4) assembly
5) release
when the host cell bursts and releases the viruses, it dies
lysogenic cycle - correct answer viral dna enters the cell and becomes part of
the host dna.
this new unit is called provirus
the viral dna stays DORMANT
is later activated and breaks off host DNA and enters lytic cycle
viroids - correct answer small infectious pieces of RNA. plant pathogen
prions - correct answer infectious particles made of abnormally shaped
protein
how pathogens are transmitted - correct answer contact
