19 pts ยท November 12, 2012
Polarized film only allows light of a certain orientation to pass through. Rotating the film shows "different parts of the same picture".
The aseptic technique my lab taught was to keep a Bunsen burner lit near by and flame your instruments and test tubes between samples.
Day 1 of lab told me not to not wear gloves. If it's a BSL-1 lab, proper sanitation is followed, and non-essentials are away, it's safe.
Powerless to male reproduction strategies is too harmful for females, so having a countermeasure is the phenotype that is most advantageous.
Expending 100% of your energy reproducing, you wouldn't live long, and using 0% wouldn't be inherited, so you need an intermediate.
In this case, male ducks have an advantage that harms female ducks. Female ducks that are successful are able to counter this harmful trait.
This is because females expend a ton of energy in reproduction, and too much reproduction can be harmful if males don't assist in some way.
Sexual Conflict - Evolutionary arms race when males develop a fitness advantage that harms female reproductive fitness.
Polarized film only allows light of a certain orientation to pass through. Rotating the film shows "different parts of the same picture".
The aseptic technique my lab taught was to keep a Bunsen burner lit near by and flame your instruments and test tubes between samples.
Day 1 of lab told me not to not wear gloves. If it's a BSL-1 lab, proper sanitation is followed, and non-essentials are away, it's safe.
Powerless to male reproduction strategies is too harmful for females, so having a countermeasure is the phenotype that is most advantageous.
Expending 100% of your energy reproducing, you wouldn't live long, and using 0% wouldn't be inherited, so you need an intermediate.
In this case, male ducks have an advantage that harms female ducks. Female ducks that are successful are able to counter this harmful trait.
This is because females expend a ton of energy in reproduction, and too much reproduction can be harmful if males don't assist in some way.
Sexual Conflict - Evolutionary arms race when males develop a fitness advantage that harms female reproductive fitness.