hello,
endangered species are animal/species that are very likely to be extinct/gone.
another meaning: are in danger to be seriously in risk of being gone.
Answer:
pfu/ml
Explanation:
Given -
Bacteriophage dilution
ml
Volume of bacteria and plate with top agar
ml
Number of plaques
pfu
Dilution (d) 
Final concentration of phage stock is equal to

Where pfu is the count of plaques
d is the dilution and v is the volume
Substituting the given values, we get -
pfu/ml
Answer:
B. because science only uses facts that are proven 100% true through the use of variable
Answer:
2 Ampere
Explanation:
According to Ohm's Law
V=IR
where V is voltage I is current and R is resistance
24=I(12)
I=24/12
I=2 A