<span>The endosymbiotic theory deals with the origins of mitochondria and chloroplasts, two eukaryotic organelles that have bacteria characteristics. Mitochondria and chloroplasts are believed to have developed from symbiotic bacteria, specifically alpha-proteobacteria and cyanobacteria, respectively.</span>
+4,+3,+2 and +1 are valences have the greatest tendency to form ions.
Answer:
Most enzymes are proteins and therefore their function is specific to their structure. Enzymes function as a catalyst to increase the rate of virtually all the chemical reactions that take place in a living system. ... The resulting enzyme-substrate complex enables the reaction to occur.
Answer:
Phylogenetic tree represents a hypothesis about evolutionary relationships
Explanation:
Phylogenetic tree is a diagram that represents evolutionary relationships among organisms.Its a hypothesis not a true facts. In a phylogenetic tree two species are related when they evolved from a common ancestor. Modern system of classification is based on evolutionary relationships. Each branch represents a divergence events. Each branch point lies a most recent common ancestor group descended from that branch point
Because we now know that antibiotics can only treat bacterial infections. this includes strep throat and other things such as urinary infections. They won't treat viruses. You can treat the symptoms, but you can not treat the virus.
(Your doctor will also give you a prescription to prevent infection.)