Which of the following statements is true of enzymes ???

A. they change shape after a reaction

B. They don’t provide an active site for substrates to bind in a reaction

C. They’re unusable after a reaction

D. They act on a specific type of substrate in a reaction

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.