Question

can u help me with this questions

1=

Select as many of the statements that reflect the correct interpretation of a node in a phylogenetic tree

?

A= The point where a common ancestor diverges into 2 or more descendant taxa.

B= The place on the tree where the names of species are placed, representing the living species in the tree.

C= The most closely related species in the tree.

D= A speciation event.

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2=

organisms that are not closely related to one another but that display similar traits, such as the flying habit of sugar gliders and flying squirrels, are examples of (.......................... ) in which unrelated species evolve similar traits due to similar selection pressures in their environment

Answer 1

1) A)The point where a common ancestor diverges into 2 or more descendant taxa .

D)A speciation event.

C) The most closely related species in the tree.

Phylogeny tree is used to represent the most common descend at of various taxas there are also used to see the speciation event at which level the new species generated and developed. By studying phylogeny we can study the most closely related species.

2) Convergent evolution

   It is a type of evolution in which two species gained traits which are present in their ancestors and are not closely traits depending on the climatic and environmental conditions depending on the habitat.