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Nostrana [21]
3 years ago
12

9. What are mutations, and how do they increase the genetic variation within a species?

Biology
1 answer:
LiRa [457]3 years ago
5 0

Genetic variation is a measure of the genetic differences that exist within a population. The genetic variation of an entire species is often called genetic diversity. Genetic variations are the differences in DNA segments or genes between individuals and each variation of a gene is called an allele.For example, a population with many different alleles at a single chromosome locus has a high amount of genetic variation. Genetic variation is essential for natural selection because natural selection can only increase or decrease frequency of alleles that already exist in the population.

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How can speciation happen between two separate populations?
algol [13]
Speciation<span> is the </span>evolutionary<span> process by which biological populations evolve to become distinct </span>species<span>. The biologist </span>Orator F. Cook<span> coined the term 'speciation' in 1906 for the splitting of lineages or "</span>cladogenesis," as opposed to "anagenesis<span>" or "phyletic evolution" within lineages.</span>
5 0
3 years ago
You are holding a coarse-grained crystalline rock with a texture that can be best described as having "interlocking crystals". t
dusya [7]

This rock can be classified as: an igneous rock.

Igneous rocks are made up of randomly arranged interlocking crystals and the important minerals that can be found in igneous rocks are feldspars, quartz, olivines, pyroxenes, amphiboles, and mafic minerals. All of these minerals are important in the formation of almost all igneous rocks, and they are basic to their classification.






6 0
3 years ago
When resources are limited, explain 4 ways by which lizard species on the Bahamas Island can coexist
aliina [53]

Answer:

Explanation:

Coexistence occur when individual occupying in a particular place are able survive with limited resources.

Dispersal - some of the lizard go hunting, they disperse themselves to various places to get resources.

Stability mechanism- this happen when individual stabilizes them selves in a particular habitat dealing with

environmental variations that may occur and drift them apart.

Equalizing mechanism - they all try to be at the same pace to avoid been out compete, even though some are stronger they equalize their energy for all to manage the limited resources.

3 0
3 years ago
The ratio between mass and volume of mass per unit volume. <br>Solid <br>Volume<br>Mass <br>Density​
ycow [4]
Yes that’s right absolutely
6 0
2 years ago
The blockage of cerebrospinal fluid (csf) outflow in the brain can cause accumulation of fluid, resulting in cranial enlargement
alisha [4.7K]

The correct answer is hydrocephalus.

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6 0
3 years ago
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