The greenhouse effect is caused by . a buildup of carbon dioxide in the atmosphere
the trapping of the sun's heat
pollution from burning fossil fuels
all of the above

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

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.