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Triss [41]
2 years ago
5

Help me pls fast

Biology
1 answer:
scoundrel [369]2 years ago
8 0
X, answer is X, good luck now, pls answer my question pls pls.
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What will occur if a species is divided into two groups and allowed to reproduce in different environments for many generations?
bonufazy [111]

Answer:

The original species will diverge into two new species. It will occur speciation. It will occur some sort of allopatric speciation.

Explanation:  

When the original species is divided and placed under different environments, where they can reproduce for many generations, many changes or mutations will occur in each group. These changes will depend on each group´s environment and its ecological pressures and will lead to divergence. Pressures act on individuals and make them adapt to the new environmental conditions. Generation after generation, the genotype of individuals will increase the fitness to survive and reproduce. The fixation of mutations will increase the difference among both groups, up to the diverging point into two new species.

The biological concept of species states that individuals of the same species can reproduce because they have a genetic reservoir in common: many genetic variants.

Genetic variability is the measure of a species organism´s tendency to differentiate. In genetic variability, individuals of the same species are not identical. They are recognizable as members of the same species, but they differ in shape, function, and behavior. There exist variations among individuals of the same species.

Genetic variability originates from mutations, recombinations, and karyotype alterations. It allows or makes possible evolution.

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 flux, as the two new populations that are separated can not get together and mate anymore. These barriers might be geographical or ecological.

The process of allopatric speciation involves different steps:

• The emergence of the barrier.

• Interruption in the genetic interchange

• The occurrence of new mutations and their accumulation in time in each population. Slow and gradual differentiation.

• Genetic divergence by natural selection and reproductive isolation makes it impossible for the two groups to mate even if the barrier disappears.

• Prezigotic isolation mechanisms favored by selection once occurs a secondary contact between the new species in formation.

6 0
2 years ago
What would indicate that a bacteria species that is successfully stained purple by a gram stain?
goldfiish [28.3K]

Answer:

Gram positive; Contain thick mesh wall of peptidoglycan in cell wall.

Explanation:

  • Gram staining technique is used to separate the gram positive and gram negative bacteria on the presence or absence of thick layer of peptidoglycan in cell wall.
  • If a bacteria contain thick layer of peptidoglycan in cell wall it will retain the primary stain crystal violet (purple) and known as gram positive bacteria.
  • If bacteria don't have thick layer of peptidoglycan in cell wall the stain will wash out and it will give the pink color known as gram negative bacteria.
  • Peptidoglycan is glycoprotein or Glucose+Protein.

5 0
3 years ago
In Biology, what is a community?​
Deffense [45]

Answer:

A community is an interacting group of various species in a common location.

6 0
3 years ago
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What are the contractile proteins?
padilas [110]
Contractile proteins<span> generate force for muscle contraction. The two </span>contractile proteins<span> in myofibrils are actin (part of the thin filament) and myosin (part of the thick filament)</span>
5 0
3 years ago
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What is pyruvate and what does it mean
Maslowich
It is <span>a salt or ester of pyruvic acid. Here is an image of what it is...

And these

</span><span>Formula: </span><span>C3H4O3</span><span>
Molar mass: </span>88.06 g/mol<span>
IUPAC ID: </span>2-oxopropanoic acid<span>
Density: </span>1.25 g/cm³<span>
Related keto-acids, carboxylic acids: </span>acetic acid; glyoxylic acid; oxalic acid; propionic acid; acetoacetic acid<span><span>Acidity (pKa)</span>: </span><span>2.50</span>

3 0
3 years ago
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