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
Alexeev081 [22]
3 years ago
14

Which of the following statements is correct regarding the evolution of flight?

Biology
1 answer:
xxTIMURxx [149]3 years ago
5 0

Answer:

d.The wing-assisted incline running theory postulates that wings were initially used to maintain balance while climbing up slopes.

Explanation:

Two theories were given to explain the origin of avian flight. The top-down theory suggested that the birds' ancestors were tree dwelling species. They took help of wings to glide from tree to tree in order to avoid predator or catch prey. The bottom up theory suggested that the birds' ancestors were ground dwelling species. They took help of wings to maintain a balance and provide a lift for efficient running.

Wing-assisted incline running was a mixture of both the above theories and gave a balanced view point. According to it, birds' ancestors used wings to maintain a balance while running up inclined slopes. The wings helped them to save energy while scaling slopes and eventually a flight mechanism was also developed.

You might be interested in
Which of the following is a group of cells that work together to preform a specific function
4vir4ik [10]

Answer:

Explanation:

A tissue is a group of similar cells that work together to do a particular job. For example, most animals have muscle tissues, which are made up of muscle cells.

8 0
2 years ago
Notice or perceive<br> e. Observe: <br> f. Infer:<br> g. Repetition:<br> h. Replication:<br> i. Data
Lelu [443]

Answer:

Try e. Observe for an answer

3 0
2 years ago
Is a fish an animal?
Varvara68 [4.7K]
Yes. They are aquatic animals.
5 0
2 years ago
Which changes faster? weather or climate
Minchanka [31]
Weather changes faster
8 0
3 years ago
Read 2 more answers
DNA and protein together form a complex called
mariarad [96]
They form a complex called chromatin
6 0
3 years ago
Read 2 more answers
Other questions:
  • 13. Which of the following occurs in the cardiac cycle if the impulse triggered at the sinoatrial node never close?
    9·1 answer
  • Please help answer the questions in the picture
    14·1 answer
  • What is the main function of a phospholipids in a cell
    12·2 answers
  • Which type of change can be inherited?
    10·2 answers
  • Which ingredient would a company that makes super-sour candy most likely use in large quantities?
    7·2 answers
  • Parasitism is when
    15·2 answers
  • An enzyme is a large _______ molecule.
    15·2 answers
  • The small population of wolves on Isle Royale has been harmed by a lack of genetic diversity, plus the accidental introduction o
    10·1 answer
  • Which of these has not been used as an RNA probe?
    9·1 answer
  • What compensates for the fact that eukaryotic cells have a small surface area to volume ratio?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!