If a catalyst lowers the activation energy, what raises the activation energy? O heat
O a reaction
O another catalyst
O an inhibitor

advantage of using stem cells in medical research:

1.       it provides medical benefits in the fields of therapeutic cloning and regenerative medicine.

2. it provides great potential for discovering treatments and cures to a variety of diseases including parkinson disease, spinal cord injuries, diabetes, alzheimer’s disease and many more.

3. limbs and organ could be grown in lab from stem cells and then used in transplant or treat illness.

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse