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
Flauer [41]
3 years ago
14

What are feathers composed of

Biology
2 answers:
ycow [4]3 years ago
8 0
Feathers are composed of beta-keratins, they are protein strands with hydrogen bonded to beta-pleated sheets and they are further cross-linked by disulphide bridges into an even tougher structure.
sergij07 [2.7K]3 years ago
7 0
Feathers are made from the protein Keratin

You might be interested in
What are macronutrients?What are the 4 main macronutrients?​
anygoal [31]
There are four principal classes of macronutrients: carbohydrate, protein, lipids and alcohol.

However...

There are three macronutrients required by humans: carbohydrates (sugar), lipids (fats), and proteins. Each of these macronutrients provides energy in the form of calories. For example: In carbohydrates, there are 4 calories per gram.
4 0
3 years ago
Read 2 more answers
Which part of a phospholipid is hydrophilic
natka813 [3]

Answer:

nonpolar fatty acid tails

The hydrophobic, or “water-fearing,” part of a phospholipid consists of its long, nonpolar fatty acid tails. The fatty acid tails can easily interact with other nonpolar molecules, but they interact poorly with water.

3 0
3 years ago
Read 2 more answers
What is the watery medium in which all the organelles float?
Irina-Kira [14]
Organelles float around in the cytoplasm.
6 0
3 years ago
What problem did scientists have with getting podophyllotoxin from the Himalayan mayapple for cancer treatment?
natita [175]
The Himalayan mayapple<span> is not an easy plant to </span>get<span> hold of. Yet we humans keep trying, because the poisonous plant also naturally produces </span>podophyllotoxin<span>, a preliminary compound in etoposide—classed as an essential medicine by the World Health Organization (WHO)</span>
6 0
3 years ago
What does the term adaption mean? How does adaption explain the patterns of distribution of plant and animal species in the worl
lina2011 [118]
Adaptation is a phenomenon that is about adjusting certain features to environmental conditions. Ie. birds are adapted to flight as they possess wings, very efficient lungs etc. or tropical plants are adapted to high temperature and humidity as they modified their photosynthesis process. but if some creature is adapted to the specific habitat or conditions, it is hard for it to manage in another habitat/different conditions. ie. birds are fast in the air but on the ground they are quite weak and prone to predators' attacks.
7 0
3 years ago
Other questions:
  • 1.What factors define aquatic ecosystems?
    8·1 answer
  • 2. The Köppen classification system is used as a classification system for
    6·1 answer
  • The most appropriate lighting for a reptile enclosure ensures adequate ultraviolet-________ exposure.
    13·1 answer
  • All colleges, alcohol is involved in about _____ percent of incidents of violent behavior.
    15·1 answer
  • Describe the two different ways to measure the size of an earthquake
    10·1 answer
  • Which of the following is a reason a theory can not be a law
    10·1 answer
  • Complete the table below showing the sequences of DNA, mRNA codons, tRNA anticodons and the amino
    5·1 answer
  • When an organism fights with another organism over a limited resource it is called?
    5·1 answer
  • A very hot. type o star would most likely its most intense radiation as?​
    15·1 answer
  • Which statement tells the most important factor that allows cells to keep accomplishing their many tasks
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!