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antoniya [11.8K]
3 years ago
14

Darwin discovered twenty different species of finches in the Galapagos islands. He hypothesized that as new islands arose, finch

es colonized the islands and rapidly changed into new species, depending on what food was available on each new island. The rapid formation of many new species, as in this case, is called
Biology
2 answers:
Bogdan [553]3 years ago
7 0
It's called a<span>daptive radiation</span>
Anon25 [30]3 years ago
4 0

Answer:

Adaptive radiation

Explanation:

Adaptive radiation is the evolutionary process that results in the emergence of different species from the same common ancestor, as reported in the above question. This process begins with the colonization of a particular group in a new environment, and is therefore subjected to new environmental conditions that will select the most able to survive in that particular environment.

Adaptive radiation is characterized by the formation of species in a short period of time, after the separation of groups within the same population that, over time, occupies different ecological niches and adaptive processes to survive in this new niche.

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Nuetrik [128]

Answer:

2 and 3

Explanation:

read it and see which will make sence

8 0
3 years ago
"Draw a pedigree for hitchhiker’s thumb. Your pedigree should cover at least two generations and include both dominant and reces
igor_vitrenko [27]

Answer and Explanation:

First, you need to know how to interpret a pedigree representation.

  • Family members

→ Individuals are represented with geometrical figures.

→ Males are squares

→ Females are circles

  • Trait/Phenotype

→ Healthy/normal/not affected  individuals are represented with empty figures

→ Affected/mutated individuals are represented with solid black figures

  • Generations

→ Each file is represented with a roman number, indicating the Generation.

 

Now, what we need to do is to draw a pedigree for a hitchhiker’s thumb. We know that this is an autosomal dominant trait, which we will represent with an H. No hitchhiker's thumb is the recessive trait, and it will be represented with an h.

Our pedigree should cover at least two generations and include both dominant and recessive forms of the trait.    

  1. We can cross two heterozygous individuals, Hh, who are the first generation in our pedigree.
  2. This cross will result in a woman and a man with No hitchhiker's thumb, another man with a hitchhiker's thumb, HH, and another woman with a hitchhiker's thumb, Hh. These individuals will represent the second generation in the pedigree.
  3. Finally, we can cross the man with No hitchhiker's thumb, hh, with a woman who does not have a hitchhiker's thumb either, hh. And the woman with a hitchhiker's thumb, Hh, with a man with a hitchhiker's thumb, HH. The result of these crosses will be the third generation.

The representation would be like following,

I → <u>First-generation:</u> First cross

  • Man Hh (1)  
  • Woman Hh (2)

II → <u>Second-Generation:</u> F1 and second crosses

  • Man hh (3)  x    Woman hh (4)
  • Woman hh (5)
  • Man HH (6)
  • Woman Hh  (7) x   Man HH (8)

III → <u>Third-Generation:</u>

  • A boy (9) and a girl (10) hh
  • A girl (11) HH

You will find this pedigree in the attached files. In this example, we included three generations. The first one belongs to the grandparents, the second one to parents, aunts/uncles, and the third one to grandchildren.  

If you draw another pedigree, remember to include

  • the figures representing males and females,
  • color and H/h representing the phenotype,
  • Roman numbers representing the generations, and optional, numbers naming each member.

5 0
3 years ago
Select the named the 4 main groups of fungi
scoundrel [369]

Answer:

Chytridiomycota (chytrids),

Zygomycota (bread molds),

Ascomycota (yeasts and sac fungi),

and the Basidiomycota (club fungi).

Explanation:

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8 0
3 years ago
What do you understand by the term cell diversity
ioda

Answer:

cell type diversity refers to range of different cells types that comprise a tissue organisms cell type diversity during the diploma of the nervous system as a result of act of the cell instructing and extractic factors controlling sulphate determination hope the answer will be helpful for

4 0
2 years ago
A form of government that is bicameral has _______ divisions.
Nookie1986 [14]
I'm not sure, but the prefix "bi" means "two" so I would say two divisions. Hope I helped! :)
7 0
3 years ago
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