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
sweet-ann [11.9K]
3 years ago
13

Feathers are modified ______. a. scales c. lipids b. hair d. tibia

Biology
1 answer:
Anuta_ua [19.1K]3 years ago
6 0
Feathers are modified as scales. According to the history, birds which have feathers are the descendants of the dinosaurs which have scales.
That's why feathers are categorized as scales in the present record according to studies. <span />
You might be interested in
How does isolation of a population lead to a decrease in genetic diversity
exis [7]

Answer:

Decrease in genetic diversity reduces the chance of variation in the offspring.

Explanation:

If there is no variation, there will be no evolution. So, if there is a change in the environment (like an outbreak of a disease) that affects one of the organisms, it is likely to affect all of them and destroy the whole population. This would lead to extinction.

8 0
3 years ago
Which unbalanced equation below describes aerobic cellular respiration
Andrei [34K]
It is C6H12O6+CO2+H20+energy
Hope this helped and be safe
3 0
2 years ago
Discussion
Viefleur [7K]

Answer:

The answer to these questions are the following:

1. sucrose solution (higher concentration of water molecules in the onion cells) >> red onion cells will shrink >> smaller diameter

2. distilled water (higher concentration of water molecules in the surrounding solution) >> red onion cells will become turgid >> higher diameter

Osmosis refers to the movement of a solvent (usually water molecules) across semipermeable biological membranes, which occurs from a region of higher concentration to a region of lower concentration. There are three classes of solutions that have different effects on cells due to the process of osmosis:

1. In a hypotonic solution, the cells will become turgid  

2. In an isotonic solution, the cells will become flaccid.  

3. In a hypertonic solution, the cells will shrink (plasmolysis)

When plant cells are placed into a hypertonic solution where there is a greater concentration of solute outside the cells (as in this case sucrose solution), water molecules will move from inside the cells to outside the cells, thereby cells will shrink due to water loss

When plant cells are placed into a hypotonic solution that is diluted in comparison to the content of the cell (as in this case plant cells placed in distilled water) water molecules will move from outside the cells to inside the cells, thereby cells will become turgid.

Learn more about this topic here:

brainly.com/question/11789335?referrer=searchResults

brainly.com/question/11269438?referrer=searchResults

4 0
2 years ago
Is it possible for marine scientists to get an exact count of a population? Why or why not?
Nady [450]

No, that is completely impossible. The reasoning behind it is because if its a large group of fish they're swimming back and forth ect, ect, it would be like counting a bowl of rice, but not being able to take any out. To get around these counting problems, scientists take data from just a small portion of the population called a sample. They take several samples and then use the average size of those samples to calculate an estimate of the entire population size.


If you need help feel free to ask!

8 0
3 years ago
Read 2 more answers
Dr. Ben Dantzer, a faculty member here at Michigan, studies red squirrels that live in the boreal forest. The boreal forest cont
seraphim [82]

Answer:  herbivore, eukaryote, primary consumer

Explanation:

The red squirrel can be described by the following features.

1. Herbivore: A herbivore is an animal which is dependent upon the plant and their products for it's food requirement. Here, the red squirrel is the herbivore because it is dependent upon the spruce tree seeds for their food requirement.

2. Eukaryote: A eukaryotic organism is the one which has well define nucleus and encloses the genetic material in the nucleus. The red squirrel is a complex eukaryotic organism.

3. Primary consumer: In a food chain a primary consumer is an organism which is dependent upon plants and their food products for energy and food needs. The red squirrel is the primary consumer this is because of the fact that it consumes on the seeds of the spruce trees.

3 0
2 years ago
Read 2 more answers
Other questions:
  • Which finding would have disproved Virchow’s hypothesis?
    6·2 answers
  • Which phenomenon occurs when the Sun crosses the plane of Earth’s equator?
    10·2 answers
  • Jason adds the antibiotic penicillin to a bacterial culture. The bacteria develop genetic modifications in their genome, which g
    5·2 answers
  • What planet is planet A?
    6·2 answers
  • What occurs during a solar eclipse? Select two options.
    13·2 answers
  • PLEASE HURRY UP IM TIMED. Genetic modification is a method farmers use so their crops are resistant to disease or cold temperatu
    14·1 answer
  • What is the expected phenotypic ratio for feather colour if two chickens with blue feathers are crossed
    7·1 answer
  • Which of the following is correct about air temperature?
    10·2 answers
  • Fertilization of a human egg takes place in the ________.
    15·2 answers
  • Whats a independent variable and dependent varivle
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!