Because it is needed more today than 50 years ago
true
It is neither ethical or unethical. It is strictly economics.
There are a few animals common to today's ocean whose relatives were also around 470 million years ago. Sharks are a good example.
Relationships between old and young are very common, today is practically the fashion. i am 44 years old and my housband is 33.
the same commn sea sickness as today...nausea, vomiting
Today it is a far common illness , then say 60 odd years ago. It is not considered a bad illness and not to be consulted.And today more people are detected with epilepsy early so they are treated early to.
You bet he is. His name has had a common place in the world's music for hundreds of years.
Silver is just as common - or not - in earth's crust today as it was ten million years ago. It is rare, but not nearly as rare as a lot of other elements we could name. The method of extracting some elements is more efficient today, but that doesn't change the relative abundance of the element.
That MAY have happened 3.5 billion years ago ... but not today. DNA carries the codes for amino acid sequences. RNA transfers the codes. Ribosomes link the amino acids into proteins. Amino acids don't code for proteins, genes do. The base sequence in the genes codes for how the amino acids should be sequenced to make proteins.
It is generally considered ethical to not begin to breed a male dog until it is two years old. Likewise, it is considered ethical to retire the dog at about 7 years of age, or sooner if its health fails.
The Hebrews' ethical worldview grew out of the Written and Oral Torah and years of interpretation of those sources.
Traditionally, it has taken four years to earn a bachelor's degree. However, today it is more common for students to take 1-2 years longer.