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vampirchik [111]
3 years ago
8

Different species of fruit flies occupy each of the islands in the Hawaiian island chain, a group of volcanic islands that forme

d one after the other. One hypothesis for how the different fruit fly species formed is that, after each new island was formed, fruit flies from existing islands colonized it and subsequently diverged. If this hypothesis is correct, it would be an example of:allopatric speciation by dispersal.sympatric speciation by dispersal.sympatric speciation by vicariance.peripatric speciation by vicariance.allopatric speciation by vicariance.
Biology
1 answer:
Valentin [98]3 years ago
5 0

Answer:

allopatric speciation by dispersal

Explanation:

Allopatric speciation is a form of speciation (creation of new species) that occurs as a result of geographic isolation. This means that a part of population becomes physically separated from the initial main population. There is no gene flow between these two populations and as a result the two populations  reach a high level  of genetic divergence. They can no longer interbreed which means they become two different species (speciation).

One of the factors that contribute to the allopatric speciation is dispersal.

New populations evolve as result of mutation, genetic drift and natural selection.

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A botanist studying the inheritance of flower color found that when she crossed the offspring of two pure-breeding flower lines,
Gemiola [76]

Answer:

This is known as incomplete dominance

Explanation:

The phenotype of a heterozygous organism can actually be a combination between the phenotypes of its homozygous parents.The heterozygous offspring and the incomplete dominance of the purple trait are a phenotypic intermediate between the parents

6 0
4 years ago
8. Green plants use oxygen for:
bija089 [108]

Answer:

a

Explanation:

plants uses oxygen for respiration, so in that process respiration takes place and respiration in plants has to do with the conversion of oxygen to carbon dioxide which serves as a means of respiration and during respiration ATP is being produced which stands for Adeosine triphosphate

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3 years ago
‼️‼️‼️‼️<br> Will give BRAINLIEST!! Please help!!
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Answer:

A AND D I THINK PLZ MARK BRAINLIEST

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3 years ago
Upon examining a sample consisting of 100 cells, you find the following distribution of cell phases. If you know that the cell c
Firdavs [7]

Answer:

the time that cell spend in prophase is 30 minutes

Explanation:

The computation is shown below:

= Number of cell ÷ sample

= 25 ÷ 100

= 1 ÷ 4

Now it takes two hours

So,

= 1 ÷ 4 × 2 hours

= 0.5

This 0.5 represent the 30 minutes

Hence, the time that cell spend in prophase is 30 minutes

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3 years ago
Life is organized into increasingly smaller levels-populations are made of organisms, organisms of organ systems, organ systems
marshall27 [118]

There are two questions (1 and 2), answer are provided as such. The cha

Answer to Question 1

Population --> Whole Organism --> Organ system --> Organ --> Tissue --> Cell

Explanation:

- The cell is the simplest, basic and functional unit of life.

- Tissue is a collection of similar cells e.g brain tissue

- Organ is a collection of similar tissues e.g Liver, Lungs

- Organ system refers to a group of closely related organs performing the same function in an organism.

- Organism comprises of well-coordinated organ systems.

- Population refers to the total number of organisms living and breeding together.

Answer to Question 2

Cell --> Genome --> Gene --> Nucleotide

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A cell consists of a nucleus and other organelles. Within the nucleus & other organelles like mitochondria lies the total genetic material of the cell known as GENOME.

- The genome contains several functional sequence of bases known as GENE.

- A gene is made of triplets of nucleotides (codons)

3 0
4 years ago
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