Answer;
Two organisms that are placed on distantly spaced twigs on a phylogenetic tree are distantly related. They don't share the most recent common ancestor.
Explanation;
A phylogenetic tree is a diagram that describes the evolutionary relationships among carious species, based on the information available to and gathered by systematists. Should be viewed as hypotheses.
-The pattern of branching in a phylogenetic tree reflects how species or other groups evolved from a series of common ancestors. In trees, two species are more related if they have a more recent common ancestor and less related if they have a less recent common ancestor.
Correct answer: D). Through an article published in a scientific journal
The first way by which the biology researchers present the result of their latest research is by publishing an article in the scientific journals. Scientific journals are a periodical publication that helps to report the progress of science by reporting new research.
Journals are archived and it is read by other people in the near future. Nowadays some journals are peer-reviewed and it is used by the scientist. it gives the scientist the most accurate and long lasting information about the latest research on science and technology.
Answer:
The population would decrease because of competition between the organisms.
Explanation:
the population would decrease because there eventually wouldn't be enough resources to support the population.
Answer:
c. selective toxicity takes advantage of structural and/or metabolic differences between host and pathogen
Explanation:
Selective toxicity is the mechanism by which antibiotics work. They cause damage to the pathogen but do not harm the host. Hence, they are selectively toxic in their mechanism. They can target both the structural or the metabolic differences between host and pathogen. Many antibiotics target unique sites in the pathogen's structure or the sites which might be present in host cells too but are not essential for the survival of the host. An example of structural difference being targeted by antibiotics is the enzymes which synthesis the bacterial cell wall so that the cell wall is disrupted. A metabolic difference being targeted would be the mechanism by which bacteria replicates so that host cell replication process is not hindered.
