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Snowcat [4.5K]
1 year ago
5

Describe the biological community and an ecosystem to which you belong.

Biology
2 answers:
kvv77 [185]1 year ago
8 0

Answer:

All the populations living and interacting within a particular geographic area make up a biological (or biotic) community. The living organisms in a community together with their nonliving or abiotic environment make up an ecosystem .

Angelina_Jolie [31]1 year ago
6 0

There are lots of abiotic and biotic factors in our biological community that made up our ecosystem.

<h3>What makes a biological community?</h3>

All the populations living and interacting within a particular geographic area make up a biological (or biotic) community. The living organisms in a community together with their nonliving or abiotic environment make up an ecosystem .

In our community, we are interact with various another species, plants tree on which our life and dependent. Abiotic factor like land, air, water are some of the main abiotic factor which make up our ecosystem.

Learn more about biological community here:

brainly.com/question/17304846

#SPJ2

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Knowing that some individuals from Island 1 colonized Island 2, biologists sample the Mainland and two Island populations fifty
raketka [301]

Answer:

The evolutionary mechanism that could be influencing the allele frequencies between both islands and the mainland population might be Founder Effect.

Explanation:

Genetic drift is the random change that occurs in the allelic frequency of a population through generations. The magnitude of this change is inversely related to the size of the original population. These changes produced by genetic drift accumulate in time and eventually, some alleles get lost, while some others might set. Genetic drift affects a population and reduces its size dramatically due to a disaster -bottleneck effect- or because of a population split -founder effect-. In <u>founder effect</u>, a new population originates when a few individuals who are coming from a bigger population carrying its genes, settle down in a new area and reproduce. This small population might or might not be genetically representative of the original one. Some rare alleles might be exceeded or might be completely lost. Consequently, when the small population increases in size, it will have a genetically different composition from the original one. In these situations, <u>genetic variability is reduced</u> and there exists the possibility of developing a peculiar allelic composition. If the number of individuals that originated the new population is low, the founder effect will be very extreme, because the effects of the genetic drift are inversely proportional to the original number of individuals.  

<em>In the exposed situation, the evolutionary mechanism that could be influencing the allele frequencies between both islands and the mainland population might be Founder Effect. The fact that both islands are similar in their frequencies might be due to little genetic variation on island 1, or because dispersion to island 2 is a recent event on time. </em>

5 0
2 years ago
What happens to rna polymerase ii after it has completed transcription of a gene?
IrinaK [193]
It is free to bind to another promoter and begin transcription.
3 0
3 years ago
•. otal genomic structure of an organism inherited from parents is known as -
joja [24]
I think the answer is a sorry if I get it wrong
8 0
2 years ago
Read 2 more answers
The Brazil nut tree, Bertholletia excels (n = 17), is native to tropical rain forests of South America. It is a hardwood tree th
Anna71 [15]

Answer:

Answer is option A.

Orchid bees are to Brazil nut trees as breezes are to pine trees.

Explanation:

In Brazil nut trees, the female orchid bees act as pollinators that help in pollination. In pine trees, wind or breeze helps in pollination.

Pine trees are gymnosperms and so they do not have flowers to attract pollinators like bees or butterflies or birds. They are wind-pollinated. Pine trees are monoecious i.e., both male and female reproductive structures (pine cones) are present on the same tree.

The male cones (catkins) produce pollen grains that are lightweight, less sticky and have air bladders or small wing-like structures. As a result of these features, the pollen grains can be easily carried and dispersed by the breeze. In order to prevent self pollination (pollen falling on the female cones of the same tree), the male cones are normally located on the lower branches of the pine tree.  

The female cones are located on the upper branches of the tree and the center of the cone contains eggs or ovules. The pollen grains that are carried by the wind, fall on the female cone of another pine tree. Each pollen grain grows a pollen tube into the center of the cone and the nucleus cell of the pollen travels through the tube and reaches the egg, where it combines with the egg to form an embryo. The embryo eventually grows into a seed. The seeds of pine trees are then dispersed by wind or animals such as squirrels.

6 0
3 years ago
Many diseases are caused by a disruption in the metabolism of glycogen, which can lead to an excess of glycogen being stored in
Jobisdone [24]

If there is too much of glycogen and fat stored in a cell can be toxic. It damages the organs and leads to diseases.

Explanation:

Glycogen is stored in the liver or muscle tissue, the diseases affect functioning of the liver, kidney and the muscles. These diseases are mainly caused by genetic enzyme that is inherited from both parents.

The glycogen storage diseases are Von Gierke disease, Pompe's disease, Cori's disease, Hers' disease. The symptoms of this glycogen storage diseases are Low blood sugar, An enlarged liver, A swollen belly, weak muscles.

It is a metabolic disorder caused by enzyme deficiencies affecting glycogen synthesis in muscles.

3 0
3 years ago
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