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
ioda
3 years ago
7

Which of the following does not characterize the lungs of birds?

Biology
1 answer:
kompoz [17]3 years ago
8 0

Answer:

C) They are compressed during inhalation.

Explanation:

Birds breathe through rigid lungs that are located in the animal's thoracic region. The trachea of birds divides into bronchi that branch inside the lungs into very thin tubes called parabronchials or parabroncholes, which are irrigated by blood capillaries that allow gas exchange.

In birds there are no pulmonary alveoli (as in mammals), but air capillaries that depart from the parabroncholes. Oxygen gas passes from these capillaries to the blood capillaries, thus causing gas exchange.

In the lower portion of the bird's trachea, before branching the bronchi, we can find the syringe, a bag-like structure that has vocal cords responsible for the birds' scream and song. Most of the time, the sound emitted by birds serves to attract the mate, mark territory and prevent birds of the same species against some predator or other danger.

You might be interested in
Which conditions would be the most favorable for an organism that reproduces asexually?
PtichkaEL [24]
The answer is C 100% sure
4 0
3 years ago
Read 2 more answers
Natural selection can lead to the formation of a new species which is called
Vera_Pavlovna [14]
It is called speciation.
So it'll be D. Speciation
Hope this helped :)
7 0
3 years ago
What enzyme deficiency in RBC leads to hemolytic anemia due to oxidative stress? ​
natka813 [3]

In some cases, massive destruction of red blood cells caused death. This drug-induced hemolytic anemia was shown 30 years later to be caused by a deficiency of glucose 6-phosphate dehydrogenase, the enzyme catalyzing the first step in the oxidative branch of the pentose phosphate pathway.

in short terms, glucose 6-phosphate dehydrogenase

5 0
2 years ago
Which of the 8 characteristics of life is the cell exhibiting in this animation?
galina1969 [7]

Answer:

These characteristics are cellular organization , reproduction , metabolism , homeostasis , heredity , response to stimuli , growth and development, and adaptation through evolution.

Explanation:

5 0
3 years ago
Scientists observed that the populations of top-level consumers in a particular ecosystem were rapidly decreasing. Further studi
yanalaym [24]

Answer:

The correct answer is - decreased population size at all levels.

Explanation:

A decrease in the productivity of producers of an ecosystem will lead to a decrease in all other organisms of the ecosystem including top-level consumers to the bottom-level producers due to the fact that producers provide energy and food to primary consumers.

It is because they are the only organisms that convert the sunlight to usable energy and food that transfer from one trophic level to other, so if the population of producers or their productivity will decrease then there will be decreased population size at all levels.

5 0
2 years ago
Other questions:
  • There are an estimated 11,025 trees of species A in an area of 3,150 hectares. What is the population density of the tree specie
    11·2 answers
  • Legumes, a type of plant, require Rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photos
    5·2 answers
  • Jenny would like to bring her service animal to work, a Labrador Retriever who helps her deal with severe anxiety. She is not su
    13·1 answer
  • When the contents of a vesicle are released by the cell is called_____?
    15·2 answers
  • waterweed grows near the surface of the water in lakes and ponds. it often grows in dense clumps. it has been observed that the
    8·1 answer
  • What is taxonomy? a. the scientific study of how living things are classified b. the name of Aristotle’s classification system c
    8·1 answer
  • In a human, only the β cells of the pancreas make insulin and only the chief cells of the stomach make pepsinogen (an inactive f
    8·1 answer
  • What are ribs? Use in your own words.
    14·1 answer
  • 4
    8·2 answers
  • How does the sucrose molecule leave the body?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!