How was the invasion of zebra mussels in the Hudson River affected one biotic or abiotic factor in the river ecosystem?

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

Compare and contrast cladistics and phylogeny. what are their advantages and disadvantages? which is the most useful in understanding how an organism developed into its current form? which concept most strongly supports your opinion about the origin of any given organism?

Whay is the following best defines climate