1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sukhopar [10]
3 years ago
5

Several species of fish in the genus Astyanax occur only in the waters in completely dark underground caves. These blind cave fi

sh have no external eyes, but have very tiny and functionless eyes under the skin. Genetic studies clearly indicate that the blind cave fish are evolved from surface-dwelling species with typical and functional eyes. The eyes of these blind cave fish are, therefore, an example of ________
Biology
2 answers:
Sunny_sXe [5.5K]3 years ago
7 0

Answer:

a vestigial structure

Explanation:

Vestigial structures are a rudimentary (or even functionless) version of a body part, but they have important functions in a closely correlated or evolutionarily close species, an example of which is the presence of eyes in fish of the genus Astyanax. The existence of these vestigial structures is strong evidence that evolution occurs in organisms, since this structure, today without much apparent function, may in the past have been extremely important to the ancestors of that species.

OleMash [197]3 years ago
7 0

Answer:

A vestigial structure

Explanation:

Several species of fish in the genus Astyanax occur only in the waters in completely dark underground caves. These blind cave fish have no external eyes, but have very tiny and functionless eyes under the skin. Genetic studies clearly indicate that the blind cave fish are evolved from surface-dwelling species with typical and functional eyes. The eyes of these blind cave fish are, therefore, an example of a vestigial structure.

You might be interested in
You find the density of a substance by dividing its volume by its weight?
Brums [2.3K]

Answer:

The formula for density is the mass of an object divided by its volume. In equation form, that's d = m/v , where d is the density, m is the mass and v is the volume of the object. The standard units are kg/m³.

3 0
1 year ago
Why is the human body considered an “ideal environment” for bacteria?
xxMikexx [17]

bacteria can live in hotter and colder temperatures than humans but they do best in a warm moist protein-rich environment that is pH neutral or slightly acidic

3 0
2 years ago
Use the diagram to answer the following questions:
Svet_ta [14]

The DNA is splitting in two, thymine pairs with adenine, and guanine pairs with cytosine

7 0
3 years ago
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
IgorC [24]

Helloooooooooooooooooooooooo

7 0
3 years ago
In which period on the geologic time scale are we currently living
Natasha2012 [34]
We are living in the quaternary period
5 0
3 years ago
Read 2 more answers
Other questions:
  • The greatest source of both nitrogen and phosphorus entering chesapeake bay is ________.
    11·1 answer
  • Which of these is an example that scientific knowledge can always be reviewed? A) A water molecule was thought to be made of ato
    15·1 answer
  • Insects shows considerable powers of water conservation through​
    14·1 answer
  • Which U.S. coast is this lobster from? Explain your reasoning.​
    13·1 answer
  • "of all the elements that occur on earth, how many are found in your body"
    8·1 answer
  • Describe the similarities and differences between the cheek cell wet mount and dental plaque wet mount.
    13·1 answer
  • How does the temp of water effect how long a glow stick will glow for?
    14·1 answer
  • Which part of the plant cell provides protection and structural support
    8·1 answer
  • Mites attach to bees to feed on them. This relationship helps the mite but harms the bee. What type of relationshin
    14·1 answer
  • Explain how meiosis and fertilization can result in a trait like sickle cell being expressed in offspring when not expressed in
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!