First of all living organisms use catalysts (more specially - enzymes), because without them it'll be needed extremely long period of time for all of the biochemical reactions to finish.Of course, catalysts are not the only thing which may change the speed of the reaction - if the environmental conditions (temperature, pH, pressure and others) are changed the reactions also may start to run faster.But the change of this conditions may kill the organisms or reduce their fitness.For instance, if the temperature becomes higher - yes the reactions would start to run faster.But the nucleic acids and the proteins of the organism are going to denaturate (their folding is going to be damaged), so this eventually would kill or damage the organism (that's what happens when a living tissue is burnt).
There are so many biological catalysts simply because every reaction is very specific.Different kinds of changes occur with the substrate/s so different catalysts would be needed to ''help'' in the realizing of these changes.There is no universal catalyst.If someone finds it he'll become a millionaire (or even more) but this just can't happen because of the above reasons.
All living organisms must have or made up of cells.
Temperature
By the nature of being a living thing, they will interact with OTHER living things around them. To fully understand them, they must be studied not only for themselves, but by how they interact with other living things around them.
One of the characteristics is they contain genetic material (DNA), which is a characteristic that all living things must have in order to be considered living. And also when inside a host, they are able to reproduce, which all living things must be able to do.
They breathe, grow, smell and reproduce. bacteria do not smell, plants do not smell, fungi do not smell bacteria do not breathe, plants do not breathe, fungi do not breathe to breathe is to force air in and force air back out. well there are at least 7 Living things are organized. living things acquire substances + energy (eat or absorb energy) living things reproduce living things respond to stimuli (behavior) living things are homeostatic (they tend to stay the same) ie body temp or pH of blood. Living things grow and develop. grow= get bigger. develop = change from birth to death living things adapt to their surroundings due to pressures from environment
Enzymes provide a surface on which reactions can take place.
Living things must be able to acquire nutrients and energy. This also means that living things must have a metabolism.
All living things need water.
All living things need nourishment.
We classify living things to keep track of the branching evolution of each living thing.
Yes. Living things must eat.
ALL living things (organic) must have carbon and oxygen to live.
All living organisms must have or made up of cells.
If the dog is living and all living things use energy, then the dog must use energy. They must continually replenish the energy that they spend through the consumption of food.
If the dog is living and all living things use energy, then the dog must use energy. They must continually replenish the energy that they spend through the consumption of food.
The criteria for living things is actually a quite extensive list. Living things must exchange gas, drink, eat, grow, and excrete waste.
non living is dead and living is alive