A laboratory study using rats showed a steady increase in physical effects as the concentration of a toxic substance in their food was increased. This suggests that tolerance increases with dosage tolerance increases with dosage A there is a threshold dosage there is a threshold dosage B there are no chronic effects of the toxin there are no chronic effects of the toxin C the dose-response relationship is linear the dose-response relationship is linear D the substance is safe to use as a rate poison

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation:

answer: 8d

step-by-step explanation:

45+5= 50+5=55+5=60