Which statement is true about climate change and biodiversity?
climate change will only affect species in polar climates.
a
b
climate change will cause an increase in biodiversity of all ecosystems.
c
d.
climate change can some species and hurt others.
climate change will increase predators in all ecosystems
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The correct answer is Climate change can help some species and hurt others. Hope this helps! I am 100% positive on my answer.

the last one: artificial selection/genetic engineering

plant breeding is modifying the genetic composition of the plant - but this isn't cloning (which is specifically introducing a gene into a genome). but you are artificially selecting for the phenotype that you want.

the second one is literally genetic engineering - the gene would have been cloned first and then inserted or genetically engineered into the new plant cell (the cotton).