A group is considered polyphyletic if the group does not contain the most recent common ancestor. it is the most parsimonious grouping. all members share homoplastic traits. all members of the group share a common ancestor. not all descendants of the common ancestor are included.

Below are the three main organs that make up the plant body. what is the main function of the structure that is identified as b in the picture above? it anchors the plant.it produces food.it absorbs nutrients.it supports the plan

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.