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
Lelu [443]
3 years ago
8

Which of the following statements describes the most likely selective pressure behind the evolution of feathers?

Biology
1 answer:
Tems11 [23]3 years ago
7 0

Answer:

c. Feathers were used as part of a social display

Explanation:

There are many speculations about the origin of feathers, some researchers believe that they emerged as a specific function, others defend the idea of the emergence of feathers from a social display.

The social display may have been one of the factors for the origin of the feathers, since in addition to the conquest of the female, animals thus selected would gain more conducive conditions for survival, such as better regulation of body temperature. But social display alone could not have forced the emergence of more complex feathers, since in many cases sexual characters usually occur only in males and not in females, or less apparent in females.

The appearance of penaceous appendages in theropods may be linked to the evolution of a high metabolic rate, which provides an improvement in locomotor skills as well as distinct behavior and visual communication. The development of penaceous appendages may also have played an important role in regards competition and radiation success of maniraptor theropods and their descendants of active flight in the Jurassic. Therefore, the theory is believed that external factors (natural selection) along with social display could have propitiated the origin of feathers.

You might be interested in
Which one is larger a main sequence star or a neutron star
nevsk [136]
A main sequence star is bigger than a neutron star,because neutron stars are remnant degenerate matter from a collapsed star,they are completely made out of Neutrons and are extremely dense,and have a diameter of only a several Kilometers.M<span>ost of them have a mass of 1.35-2 Solar masses.</span>
3 0
3 years ago
How is the protein created from the mRNA sequence which reads AUGAUAGUGUAC different from the protein created from one that read
adoni [48]
To transcribe the mRNA to make the DNA, we use genetic codes called codons. These are composed of three amino acids clumped together. It could be Adenine(A), Guanine(G), Uracil(U) and Cytosine (C). The difference is that first thread contains GUG, while the second one contains AGU. GUG is for Histidine while AGU is for Serine.
8 0
3 years ago
choose the best answer. what is the function of leaf? A. Photosynthesis. B. Transpiration. C. Aeration. D. None
NARA [144]

The function of leaf is A. photosynthesis

6 0
3 years ago
Read 2 more answers
Please help question 2
Anna11 [10]
The earth rotates on its axis
3 0
3 years ago
Which of the following areas shows the location of the medulla oblongata? (3 points)
ArbitrLikvidat [17]

Answer:

the medulla oblongata is located in region c

Explanation:

i took the test

8 0
2 years ago
Other questions:
  • A portion of the dna molecule containing a sequence of base pairs that encodes a particular protein is known as a:
    7·1 answer
  • • Who is the author?
    15·1 answer
  • Sexual drive in females Select one: a. is dependent on hormones. b. can be affected by psychological factors. c. is influenced b
    13·2 answers
  • How many characteristics of life do you need to be considered living?
    11·1 answer
  • Recall the discussion of mythical places in unit eight. would firefly forest be considered a mythical place? why or why not?
    11·2 answers
  • 11. Which of the following compounds is formed when three fatty acids covalently bond to
    14·1 answer
  • Which statement best describes the amount of catalyst that remains at the end of a reaction? More catalyst is present at the end
    11·2 answers
  • In which layer of the atmosphere do humans live?
    11·1 answer
  • Which evidence is consistent with the endosymbiotic hypothesis for the origin of the mitochondrion?
    6·1 answer
  • Which manifestations are exhibited with syndrome of inappropriate secretion of antidiuretic hormone (siadh)?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!