Which events are likely to be catastrophic to an ecosystem? select the three correct answers

The correct answers are:

A. hurricane

D. Introduction to an aggressive invasive species.

E. Tsunami

A catastrophic events are the events which can cause heavy damage to the ecosystem. Hurricane, a tropical cyclone, tsunami, a series of destructive tidal wave cause heavy damage to the ecosystem. Along with hurricane and tsunami, an aggressive invasive species (a species which is not native to a specific location) which have a tendency to spread very fast to the given geographical location and cause damage to the ecosystem by damaging local species.

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.

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products