TRENDING NEWS

POPULAR NEWS

The First Places To Drift Terrestrial Patterns

Answer Question Please?

No, it would travel down the foodchain. Animals who eat the planteating animals would then die too

Need help with making up an extraterrestrial?

cuz see i have this project and the goal is to design an alien from another planet to describe how each alien evolved according to each theory. (lamark and darwins theory). what i was thinking of doing is starting off this creature being non-intelligent to adapting into intelligence to survive in the environment they r in. and they adapt to it and all the unintelligent ones die off and i have to have examples for each theory on how and why that happens. what is a living creature outside of earth that has no intelligence called, whats the term? and i know that this isnt possible (for an unintelligent being to turn intelligent) but my teacher said that didnt matter we just have to make it up and be creative.referring to my project, what would happen to something unintelligent for it to not survive? kinda like if u look at it like if humans had no intelligence, what would happen to us? how would they exactly die off? and what can i make up, for the creature to turn unintelligent to intelligent? example, giraffes once had short necks and there necks grew because of them stretching up at trees for food and the ones with the long necks survive and pass it on to future generations and the short necks die and extinct. so how could i make up something to turn an unintelligent being from intelligent? it could be made up and fictional, i just dont know where to start. idk if u know what i mean and get what im saying. I hope u guys understand this lol. Thanks to everyone who answers!

BQ: what is the difference between an extra dimensional being and an extraterrestrial?

What exactly is biodiversity? i don't get it.?

Biodiversity is the variety of life forms that exist in the planet. it is often broken down into regions. often there are other countries that have higher biodiversity than other countries.

If a population of organisms was genetically identical, Could they evolve? Why?

Not at first, no. But eventually, yes.

I'm guessing that this is a textbook question about natural selection.

Natural selection is the main (but not the only) driving force of evolution. And natural selection depends on variation. So if all the members of the population were genetically identical, then no natural selection could occur.

I.e., if all the individuals were genetically identical, then all would have an equal chance of survival and reproduction. So no evolution would occur.

But then there is mutation.

Mutation occurs because replication is not perfect. Small changes in the genetic code occur with every cell replication, and with every new individual. Small variations that were harmful to survival, or even lethal, would not last very long. But small variations that were neutral (neither better nor worse than the original) would not only continue but spread a bit into the population (called genetic drift) and any slight improvements would spread a lot into the population.

Once mutations start spreading into the population, that is, by definition, evolution.

So even if the population started with all genetically identical individuals, small variations would eventually start appearing. And then evolution via natural selection resumes.

TRENDING NEWS