In some third world countries "cyanide fishing" for aquarium trade is allowed. cyanide fishing uses the cyanide to "stun" fish and make them easy to catch. but the cyanide combined with handling stress has led to a mortality rate in the captured fish somewhere between 60% and 80%. knowing this, how might this method impact the environment? cyanide is a safe chemical, so there will not be any effect on the environment.
b) increase cyanide levels in the water will increase the biodiversity in that area.
c) since so many fish are being caught, there is more room for predators to flourish.
d) it could lead to overfishing, since more fish have to be caught due to the high mortality rate.

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

Ayoung boy has been found and police are trying to locate his family they take a dna sample from him and begin collec dna samples from families who have missing children if police use dna samples only from the fathers, which type of dn technology can they use to identify the boy's parent? y-chromosome analysis omtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) o pcr (polymerase chain reaction) analysis