The bloody-heart lichen is composed of a fungus and an alga. The alga makes food through photosynthesis and the fungus encloses the alga, providing support. What kind of relationship is this?
A
competitive
B
commensal
C
mutualistic
D
parasitic
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Ответ:
D Parasitic
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Ответ:
Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
hope this helps :)
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