Select the true statement(s) about enzymes. Enzymes increase biochemical
reaction rates.
Enzymes are catalysts.
Enzymes decrease activation energy.
Enzymes are proteins.
Enzymes are reusable.

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.