Answer: <span>Normal microbiota directly kill invading organisms.
Some bacteria that reside in our body are useful to combat pathogenic microorganisms. Those bacteria, like lactobacillus and E.coli, inhibit the growth of those pathogenic organisms by taking, for example, oxygen and nutrients from them, or even changing the local ph. They can also produce metabolites that make the environment impossible to live for the intruders.
</span>
Answer:
Photosynthesis requires light energy, respiration does not.
Respiration occurs in all organisms, photosynthesis only occurs in plants, green algae,
and some bacteria.
Respiration occurs in mitochondria, photosynthesis occurs in chloroplasts,
Respiration consumes glucose and oxygen, whereas photosynthesis produces them.
Internal costs are easy to see and explain. They are costs that a business bases its price on. They include costs like materials, energy, labour, plant, equipment and overheads. External costs are costs that are NOT included in what the business bases its price on.
Control Group: Group that is being controlled .This group doesn´t receive the treatment from the researchers
Experimental Group:Group that is being Experimented and that receives the testing