What must be TRUE of any organ described as vestigial?It need be neither homologous nor analogous to some feature in an ancestor.O It must be analogous to some feature in an ancestor.O It must be homologous to some feature in an ancestor.OIt must be both homologous and analogous to some feature in an ancestor.

Evolution can be defined as the change in characteristics of population over a long period of time…

What must be TRUE of any organ described as vestigial? It need be neither homologous nor analogous to some feature in an ancestor. It must be analogous to some feature in an ancestor. It must be homologous some feature in an ancestor. It must be both homologous and analogous to some feature in an ancestor.

What must be TRUE of any organ described as vestigial? It need be neither homologous nor analogous to some feature in an ancestor. It must be analogous to some feature in an ancestor. It must be homologous some feature in an ancestor. It must be both homologous and analogous to some feature in an ancestor.

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter11: Evidence Of Evolution

Section: Chapter Questions

Problem 11SQ

See similar textbooks

Similar questions

You have now studied three different types of anatomical structures. Homologous structures show individual variations on a common anatomical theme. These are seen in organisms that are closely related. 1. Give an example of a homologous structure from this activity: Analogous structures have very different anatomies but similar functions. These are seen in organismsthat are not necessarily closely related but live in similar environments and have similar adaptations. 2. Give an example of an analogous structure from this activity: Vestigial structures are anatomical remnants that were important in the organism's ancestors but are nolonger used in the same way. 3. Give an example of a vestigial structure from this activity:
A review of the phylogenetic tree shows a common ancestor for these vertebrates. Which statement BEST explains the relationship represented by the phylogenetic tree? Drosophila Lancelet Zebrafish Frog Chicken Human Mouse
Some organisms have features that have different functions, but similar structures. One example is the forelimb of humans, dogs, birds, and whales. Human Dog Bird Whale What term best describes the relationship between these forelimbs? They are vestigial. O They are homologous. They are embryological. They are analogous.
Which of the following illustrates the unity observed in organisms with a common ancestor? Flamingos and penguins are different colors. The gene for the human hormone insulin can be inserted into bacteria, and the resulting bacteria can use the gene to produce functional insulin. A robin can fly, but a penguin cannot. Fungi tend to absorb nutrients from other organisms, while animals consume their food. O Living organisms span a range of sizes.
Which phenomenon describes individuals that do not share a common ancestor? O Convergent Evolution O Divergent Evolution Homologous Structures O Adaptation
The forelimbs of the organisms in Figure 1 are examples of what type of structures? What do these structures indicate about the evolution of the three organisms? What would be an example of a structure analogous to the last structure? How does the anatomy of the forelimbs show an evolutionary pattern?
You are examining an organism you believe to be an animal. Which of the following would NOT support your hypothesis? O A The organism appears to be heterotrophic. O B The organism appears to be multicellular. O C The organism appears to be motile. O D The organism appears to have cell walls. O E All animals, including sponges, have development directed by Hox genes.
Which of the following passages inaccurately describes the evolutionary process? Wings are a highly valuable structure for any species as they increase survivorship and dispersal capabilities. Insect wings are hypothesized to have evolved from dorsal extensions from their thorax that, over generations, were selected for as they helped to absorb solar energy, aiding in thermoregulation. AS mutations continued to accrue, muscles attached to those flaps, making them more motile, and uitimately setting the foundation for wingS. Mammals have three ossicles, or tiny bones, in their middle ear that aid the hearing: the malleus, the incus, and the stapes. The stapes is the oldest of the three bones, having evolved from the pharyngeal arch ll, called the hyoid arch. We know it's the oldest as it is found in tetrapods (the columella) and in some more recently evolved fish. The malleus and incus evolved from bones of their ancestral mammal-like reptiles jaws, the articular and the quadrate…
What are homologous structures? A body structure that is present in one lineage but absent in another closely related lineage. Body structures that are similar but evolved independently in different lineages Body structures that are similar in different lineages because they are derived from a feature present in a common ancestor
Snakes evolved from ancestors who had the ability to walk. Some snakes, in fact, still have small pelvis and leg bones that are rermnants from this ancestor. What are these called? * O Vestigial structure Homologous strucre O Sympatric structure Molecular homology
Shows how modern organisms descended from common ancestors Structures that do not serve a function and are similar to those found in earlier organisms 1. Transitional Species Compares the age of fossils to each other based on the layers of rock they are found in 2. Vestigial structure 3. Fossil Record 4. Relative Dating Evidence of gradual change between a new species and its ancestor 5. Radiometric Dating Structures that related species have inherited from a common ancestor 6. Homologous Structures uses radioactive elements to narrow down the age of a fossil to a specific period
Vestigial structures are: structures that were helpful to our ancestors but do not serve any useful purpose under current conditions structures that are only helpful when there is competition for survival structures that are harmful relics of our evolution structures that appear to contradict our understanding of how evolution works O000