« previous next »

Author Question: Currently, two extant elephant species (X and Y) are placed in the genus Loxodon (Read 2029 times)

hummingbird

  • Sr. Member
  • ****
  • Posts: 324
on: Jul 7, 2013
Currently, two extant elephant species (X and Y) are placed in the genus Loxodonta, and a third species (Z) is placed in the genus Elephas. Thus, which statement should be true?
A) Species X and Y are not related to species Z.
B) Species X and Y share a greater number of homologies with each other than either does with species Z.
C) Species X and Y share a common ancestor that is still extant (in other words, not yet extinct).
D) Species X and Y are the result of artificial selection from an ancestral species Z.
E) Species X, Y, and Z share a common ancestor, but nothing more can be claimed than this


Celeste

  • Hero Member
  • Posts: 588
Reply #1 on: Jun 19, 2019
B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

A diversity of species live within the soils, the ecology of which remains to be explored. A diversity of species live within the soils, the ecology of which remains to be explored.
These two species of bedstraw grow predominately on different soil types: Galium saxatile (shown her These two species of bedstraw grow predominately on different soil types: Galium saxatile (shown her
Elephant orphanage in Sri Lanka Elephant orphanage in Sri Lanka
shelducks, genus Tadorna, are a group of large birds in the Tadorninae subfamily of the Anatidae shelducks, genus Tadorna, are a group of large birds in the Tadorninae subfamily of the Anatidae
Three possible phylogenies for the australopithecines with Au. anamnesis as the stem ancestor and re Three possible phylogenies for the australopithecines with Au. anamnesis as the stem ancestor and re
Philippine Tarsier (Tarsius syrichta), Philippine Islands, a threatened species. Philippine Tarsier (Tarsius syrichta), Philippine Islands, a threatened species.
Video: Natural Selection, Species Isolation and Real World Example

For a complete list of videos, visit our video library