a. parsimony; simplest; fewest
When selecting among multiple possible phylogenetic trees that fit our data, we commonly use the principle of <u>parsimony</u>, which means we choose the <u>simplest</u> possible hypothesis. In phylogenetic analysis, that means selecting the tree that represents the <u>fewest</u> evolutionary changes or mutations.
Explanation:
Phylogeny describes the evolutionary history of on organism or group of organisms.
A phylogenetic tree structure is used to describe the relationship between various organisms which have originated from common ancestors.
The Principle of Parsimony is best applied while constructing phylogenetic tree.
This principle emphasizes on simple observations on a phylogeny which requires only few changes or variations which explain for the difference between the phylogenic sequences.
This tree structure will only have few specific genetic variations or mutations or evolutionary changes which took place through new appearance of a trait or disappearance of an existing trait.
Answer:
Fever.
Explanation:
If gram-negative bacteria contain a small amount of Endotoxin in the circulatory system can cause different types of infections such as inflammation, bleeding, hypertension, clotting, and fever.
Endotoxin is known as glycolipids, lipopolysaccharide (LPS) the most potent toxic molecule which is capable of causing lethal shock. It is present in the bacterial cell wall.
Answer:mutualism
Explanation:
In a mutualistic relation,both organisms involved benefit from the activities of each other. The benefits may be nourishment,shelter, protection etc.
In the above example,the birds are known to guide humans by responding to specific calls made by the human. They guide humans to beehives and then in return gets to feed on left over honey. Both the bird and human benefits by getting nourishment.
Mutualism is unlike parasitism where one of the organism involved benefits and the other organisms Is most likely harmed. It is also not commensalism, where one organism benefits and the other neither benefits nor is harmed
Answer:
(B) None of the answers are true...
Explanation:
(A) is wrong because the high levels of epinephrine promote activation of sympathetic nervous system that'll ultimately increase oxygen consumption.
(C) Elevated temperatures of body require immediate cooling that's why breathing rate gets high and ultimately the oxygen consumption.
(D) We all know that a vigorous dose of exercise always increases your bodies oxygen consumption.
