What are the functions of an enzyme in a metabolic reaction? (Choose all that apply.) bringing substrates closer together so they are more likely to react
binding to ions to form a substrate
lowering the energy it takes for a reaction to occur or speeding up a reaction
aligning the parts of substrates that need to connect to form a product.

the answer is b)3/8x+1

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

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