What is the difference between micro-evolution and macro-evolution?
1. macro evolution is a change in the gene pool and micro evolution is the formation of a new species.
2. micro evolution is the change in the gene pool and macro evolution is the formation of a new species.
3. there is no difference.
4. micro evolution only happens in the galapagos island and marco evolution only happens in trinidad.

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Recombinant dna (rdna) creates offspring which are genetically identical to the parent is the process of breeding only organisms with desirable traits involves the removal of the nucleus of a cell combines genes from organisms of different species in a lab

Which characteristics must an object possess in order to be considered alive?

Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. crinoids are an echinoderm species which uses anchoring structures called holdfasts to attach themselves to the sea floor. crinoids were most abundant in pennsylvania during the mississippian period, which ranged from 375 to 320 million years ago. fossils of the crinoids shows that during most of this time pennsylvania was that provided favorable conditions for crinoid growth. a) glacial terrain b) a dry and sandy plain c) mostly mountain ranges d) covered by warm, shallow seas