What's the difference between a biome and an ecosystem

Convert 0.14 kilograms to grams.grams

Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above