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
Len [333]
3 years ago
7

The wings of butterflies and birds are ----------- structures because, although they are used for the same purpose (flight) they

have very different structural compositions. Bird wings are made of bones and feathers while butterfly wings are made from chitin and are part of the insect’s exoskeleton.
A) homologous
B) analogous
C) vestigial
Biology
2 answers:
podryga [215]3 years ago
6 0
B. They are analogous structures because they share the same function, but not fully the same structural characteristics
Tems11 [23]3 years ago
6 0
B, analogous structure, they both share the same purpose, but are structurally not the same.
You might be interested in
Would someone like to help me plz
BARSIC [14]
Density - Calculated from measurements of mass and volume
Atom - the basic particle of matter
Motion - calculated from measurements of distance and time
Energy - can change form and move matter 

Can't see the last one but you know process of elimination soo
6 0
3 years ago
Read 2 more answers
In the investigation of oxygen dynamics in E. chlorotica cultures,
Oksana_A [137]

Answer:A

Explanation: Teacher gave me the answer

3 0
3 years ago
Explain the difference in meaning between the words microbe and pathogen.
Ivanshal [37]

Answer:

Different diseases are caused by different types of micro-organisms. Microbes that cause disease are called pathogens. It is important to remember that: A pathogen is a micro-organism that has the potential to cause disease.

8 0
3 years ago
Evaluate the lab and data collected. What type of transport occurred in this lab? Explain your answer, including evidence from y
andreev551 [17]

To know what type of transport occurred the lab and collected data are needed. As they are not present an explanation of the different transport's types, will be given.

Water, proteins, ions, and molecules of different sizes can pass through the cell membrane using different types of transports. The transport that each molecule uses depends on the concentration, size, and polarity.

We can classify the types of transport as active and passive.

Passive transport is the one that does not need energy to happen since the molecules move from a place of high concentration to a one of lower concentration. In this group, we have:

  • Simple diffusion: small molecules in high concentration on one side of the membrane; move to the other side due to the difference in concentration.
  • Osmosis: water passes through the membrane from a place of low concentration of molecules to one of high concentration. Water moves inside or outside the cell to valance the concentration of solutes on both sides of the membrane.
  • Facilitated diffusion: uses proteins to transport large molecules, ions, or hydrophobic molecules from one side to the other. In this type of transport, we have proteins that form channels so those hydrophobic molecules can pass through the lipid membrane, and carrier proteins, which binds to a specific molecule changing their shape and transporting the molecule.

Active transport needs the<em> energy</em> to transport molecules; since it goes against the gradient's concentration. In this group, we have:

  • Sodium-Potassium pump: uses ATP to move sodium outside the cell and potassium to the inside. The ions with this transport go to where they are most concentrated.

In conclusion, there are different types of transport; they depend on the concentration or type of molecule. To find out what mechanism of transport occurred in the lab, look at the components of the experiment and analyze which of these transports could be present.

Learn more at:

brainly.com/question/18565254

5 0
2 years ago
During dna replication, the two strands separate as the ____________ bonds connecting the parent strands are broken by an enzyme
Setler79 [48]
During DNA replication, the two strands separate as the hydrogen bonds connecting the parent strands are broken by an enzyme called helicase. In the DNA molecule (double strand) complementary bases are joined by hydrogen bonds; that is; Adenine paired to thyamine and guanine to cytosine; during replication the enzyme helicase separates the double helix by breaking the hydrogen bonds between the complementary bases. 
3 0
3 years ago
Other questions:
  • During the entire month of June, temperatures increase in the Northern Hemisphere and decrease in the Southern Hemisphere. What
    15·1 answer
  • Select the best discriptiom for each cycle:
    15·1 answer
  • Which is an example of biodiversity contributing to the sustainability of an ecosystem?
    5·2 answers
  • How are carbohydrate polymers formed?
    15·2 answers
  • According to scientific evidence, earth’s earliest atmosphere lacked oxygen. Over time, oxygen was added to the atmosphere.
    7·2 answers
  • An organism of the kingdom Protista could be _______.
    13·1 answer
  • Which of the following best matches a part of a living cell with the function it performs?
    14·1 answer
  • How are cellular respiration and photosynthesis related, in terms of energy?
    11·1 answer
  • What are both prokaryotic and eukaryotic cells unable to produce??​
    8·1 answer
  • How much water would you need to add 225.0 ml of 1.500 m sugar solution to make a 1.000 m solution
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!