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
gregori [183]
2 years ago
13

How specifies that are separated for a river, rocks, mountains, forest ; can at some point not being able to interbreed anymore

Biology
1 answer:
Allushta [10]2 years ago
8 0

Answer:

Species separated by a physical barrier for a long time, suffer allopatric speciation, so they can not interbreed anymore.

Explanation:

Allopatric speciation consists of the geographic separation of a continuous genetic background giving place to two or more new geographically isolated populations. These separations might be due to migration, extinction of geographically intermediate populations, or geological events. In this speciation, some barriers impede genetic interchange, or genetic flow, as the two new populations that are separated can not get together and mate anymore. These barriers might be geographical or ecological.

Vicariance is the geographical separation of an original population into two or more new groups. Discontinuities in the physical environment like rivers, mountains, water, etc., are physical barriers that impede genetic flow between the separated groups.

The process of allopatric speciation involves different steps:  

  1. The emergence of the barrier.  
  2. Interruption in the genetic interchange
  3. The occurrence of new mutations and their accumulation in time in each population. Slow and gradual differentiation.
  4. Genetic divergence by natural selection and reproductive isolation makes it impossible for the two groups to mate even if the barrier disappears.  
  5. Prezigotic isolation mechanisms favored by selection once occurs a secondary contact between the new species in formation.

You might be interested in
the outer ______ are the parts of an atom that are involved in chemical reactions. a. electrons b. protons and neutrons c. elect
Anni [7]
A. electrons
it is the electrons in the outermost shell of an atom that react with other atoms
7 0
3 years ago
Read 2 more answers
1. What is a longitudinal wave?
hichkok12 [17]

Explanation:

1. What is a longitudinal wave?

  • A wave vibrating in the direction of propagation
  • This is also called "pressure waves"
  • Example: Sound waves, ultrasound waves

2. When you hear a sound wave through the air, what are you detecting?

We are detecting the sound wave through the ears. There is a part called ear drum present inside the ear and it turn contains 3 bones which makes us to hear the sounds. When sound waves enters, the ear drum vibrates.

3. In which direction does the material vibrate, as energy travels through it?

The direction is perpendicular to the direction of energy transport.

4. When a wave transmits, or transfers, energy, do the individual molecules or particles also move from one end to the other?

Yes, the particles move from one end to other.

6 0
3 years ago
Im confused can someone assist me ?
NISA [10]

Answer:

recessive trait ,I think it

5 0
2 years ago
Which of the following physical methods of microbial control is NOT used in the food industry?
gayaneshka [121]
The answer to this question is c. Osmotic pressure
4 0
3 years ago
By definition, a pericentric inversion includes the ________.
svet-max [94.6K]

Answer:

centromere

Explanation:

Chromosomal inversions, as its name suggests, are alterations that occur when a portion of the chromosome splits off but rejoins the chromosome in reverse. The genetic material remains the same, however, the disposition of information occurs in a exchanged manner.

We can classify chromosomal inversion into two types:

  • Pericentric: Pericentric inversion occurs when the region undergoing inversion surrounds the centromere.
  • Paracentric: Paracentric inversion occurs when the inverted region does not involve the centromere.
3 0
2 years ago
Other questions:
  • Stormwater runoffs carry oil leaked by vehicles on a highway into a pond. This is an example of what kind of pollution?
    12·2 answers
  • I need help with a dang Mono Lake ecosystem thingy
    7·1 answer
  • The cross AaBb × AaBb is an example of a _______ cross, and the results of such crosses led Mendel to propose what we now call t
    15·1 answer
  • Discuss two benefits of multicellular organisms having some specialized cells rather than all the cells being the same.
    5·2 answers
  • Which of the following example(s) does NOT cause bias in a research study.
    13·1 answer
  • Coral reefs are essential for the survival of other organisms
    15·1 answer
  • Which of the following types of mutation would convert a proto-oncogene into an oncogene?
    8·1 answer
  • True or False
    9·2 answers
  • Sometimes multiple genes for the same trait can be expressed, causing a "mixing" of the phenotypes. This is known as?
    13·2 answers
  • 3
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!