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Arlecino [84]
3 years ago
15

Why is charles darwin's book on the origin of species (1859) considered an important contribution to modern science?

Biology
1 answer:
bija089 [108]3 years ago
5 0

it synthesized information from diverse scientific fields in order to document evolutionary change.

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Consider the evidence that explains how physical separation of two populations of a species can cause speciation. What effect do
Tom [10]

Answer:

  • Interruption in the genetic flow between separated groups
  • The emergence of new mutations in each of the groups, and their accumulation in time. Slow and gradual differentiation between populations.
  • Genetic divergence by natural selection and reproductive isolation
  • Prezigotic isolation mechanisms

Explanation:

Allopatric speciation consists of the geographic separation of a continuous genetic background that can give 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 groups 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 that affect organisms:

  • 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 will be favored by selection if occurs a secondary contact between the new species in formation.
4 0
2 years ago
Light pollution harms plants and animals because they confuse it with_____
valentinak56 [21]

Answer:

The moon

Explanation:

Most nocturnal plants, animals and insects, like moths, use the moon as their guide through the night. This is why insects are attracted to light in the nights

7 0
2 years ago
cual consideras que es el proceso mediante el cual se transforma los alimentos en energia para las celulas de nuestro cuerpo
Murljashka [212]

Answer: Please refer to:

El metabolismo es el conjunto de reacciones químicas que tienen lugar en las células del cuerpo para convertir los alimentos en energía. Nuestro cuerpo necesita esta energía para todo lo que hacemos, desde movernos hasta pensar o crecer.

Explanation:

Not sure but hope it helps.

3 0
2 years ago
PLEASE I NEED HELP IN THIS ONE ASAP
Vedmedyk [2.9K]

Answer:

im pre sure its genetic mutation

Explanation:

coz it changes the genes in the organism

m

8 0
2 years ago
Read 2 more answers
QUESTION 31 Chipmunk mitochondrial DNA was fingerprinted using the single primer amplified region technique (SPAR) and the PCR r
natima [27]

Answer:

It depends on the size of the amplified DNA fragments (for example for SPAR markers consisting of 200 bp in length >> 1600 / 200 = 8)

Explanation:

The PCR based single primer amplification reaction (SPAR) methods are tools for detecting genetic diversity by using DNA markers such as Simple Sequence Repeats (ISSRs), Minisatellite DNA regions (DAMDs) and Random Amplified Polymorphic DNAs (RAPDs), which can be used alone or combined with each other. In the last years, the SPAR methods have gained attention in the scientific community because they are cost-effective and highly effective for the detection of both intraspecific and interspecific genetic variation. In the SPAR methods, the size of the bands will depend on the length of the amplified DNA fragments.

6 0
3 years ago
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