A disadvantage of sexual reproduction in plants is A) the two-generation system.
B) genetic variation.
C) additional energy needs to complete a life cycle.
D) excess genetic material from two parents.

Our understanding of dna and gene expression has dramatically increased over the last 50 years. describe 2 positive impacts and 2 negative impacts that the feild of biotechnology and genetic engineering has had in agricultur, medicine, and human health?

What is the difference between extinct and extirpated?

Is a glacier nothing more than a huge mineral flowing downhill? be sure to defend your answer with facts.