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
mrs_skeptik [129]
3 years ago
11

How homologous structures and vestigial structures are evidence of evolutionary relationships.

Biology
1 answer:
natali 33 [55]3 years ago
3 0

Answer:

Due to presence of these structures in ancient as well as modern organisms.

Explanation:

Homologous and vestigial structures are the evidences that show  evolutionary relationships between organisms because these structure were also present in the ancient ancestor of that organism. These homologous and vestigial structures shows the relationship between the ancient and the modern organisms. Some structure has a purpose and function in the body of ancient organisms but with the passage of time those structure are useless and have no function in the body but these structure shows connection between modern and ancient organisms.

You might be interested in
Suppose that at a given point along a capillary, the following forces exist: Capillary hydrostatic pressure (HPc) = 30 mmHg Inte
Ainat [17]

Answer:

Suppose that at a given point along a capillary, the following forces exist: Capillary hydrostatic pressure (HPc) = 30 mmHg Interstitial fluid hydrostatic pressure (HPif) = 0 mmHg Capillary colloid osmotic pressure (OPc) = 25 mmHg Interstitial fluid colloid osmotic pressure (OPif) = 2 mmHg. The net filtration pressure at this point in the capillary is <u>7mmHg.</u>

Explanation:

  • Data:

Capillary hydrostatic pressure (HPc) = 30 mmHg

Interstitial fluid hydrostatic pressure (HPif) = 0 mmHg

Capillary colloid osmotic pressure (OPc) = 25 mmHg

Interstitial fluid colloid osmotic pressure (OPif) = 2 mmHg

  • Formula Applied :

Net filtration pressure= hydrostatic pressure gradient -  Oncotic pressure gradient

Hydrostatic pressure gradient = Capillary hydrostatic pressure - Interstitial hydrostatic pressure = 30mmHg - 0 mmHg = 30 mmHg

Oncotic pressure gradient =  Capillary colloid osmotic pressure - Interstitial fluid colloid osmotic pressure =25  - 2 = 23 mmHg

Net filtration pressure= hydrostatic pressure gradient -  Oncotic pressure gradient = 30 mmHg - 23 mmHg = 7 mmHg.

Hence, The net filtration pressure at this point in the capillary is <u>7mmHg.</u>

3 0
3 years ago
Involuntary is which type cardiac, smooth, or skeletal?
grin007 [14]

Answer:

Smooth and cardiac

Explanation:

Smooth and cardiac muscles are both involuntary.

This means we do not consciously control them. Smooth muscles are found, for example, in the esophagus, and small intestine. The cardiac muscles are found in the heart.

The skeletal muscles are those that we control consciously, such as the muscles for moving our arms and legs.

4 0
3 years ago
Dr. mclear is a scientist studying heredity. she wants to isolate the basic unit for the transmission of heredity, which is a(n)
AlekseyPX
I believe the answer would be gene.
5 0
3 years ago
50 POINTS!!! PLEASE HELP!!! &gt;3&lt;
tino4ka555 [31]
The answer is C. thousands of galaxies

because<span> Hubble found 10,000 of galaxies just by observing one small little area in space.

So, it has to be thousands.</span>
7 0
3 years ago
Read 2 more answers
True or false if false type the right answer. History<br>Sorry I choosed biology by mistake
bogdanovich [222]

Answer:

the first is mostly false but somewhat tru the second is true and the third is true

Explanation:

7 0
3 years ago
Other questions:
  • Explain the human activities that are causing the numbers of amphibians to decline
    9·2 answers
  • Explain how magnesium hydroxide can reduce the amount of acid in the stomach
    13·1 answer
  • Which traits are polygenic traits? Check all that apply.
    10·1 answer
  • Which occurs directly before forming a hypothesis?
    7·1 answer
  • Opposing pairs of muscles involved in moment are called?
    10·1 answer
  • Different finch species have beaks of different shapes and sizes. What do these beak differences tell us?
    15·1 answer
  • According to Charles Darwin theory of natural selection
    5·2 answers
  • Cual es la diferencia entre cigoto; embrión y feto
    7·1 answer
  • Air is made of ____and ____​
    5·2 answers
  • Interactions between Na channels and Na -HCO3- cotransporters in the freshwater fish gill MR cell: a model for transepithelial N
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!