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DerKrebs [107]
4 years ago
13

Examine the different the types of relationships that occur among population in a community.

Biology
1 answer:
Julli [10]4 years ago
3 0

Ecological relationships describe the interactions between and among organisms within their environment. The can be positive, negative or neutral.

Predation can be considered as any interaction between two species where one species is a bit stronger and benefits by obtaining resources from and to the detriment of the other.

Competition occurs when multiple organisms compete for a limited resource that they all need to survive.

Mutualism  is a positive interaction that benefits two different species in the community. For example,  the mutualistic relationship between alga and fungus that form lichens creating a new beneficial species in the community.

Commensalism is an interaction where one species benefits and the other remains unaffected.

Amensalism is an interaction in which the presence of one species has a negative effect on another, but the first species is unaffected. This could occur as simply as a human walking across a lawn, crushing the lowest level of the community.

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they are able to perform a specialized function in the body

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If a child has a phenotype of straight hair, (which is a recessive trait) what is the child's genotype? Explain
tankabanditka [31]

Answer:

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8 0
3 years ago
Regulatory proteins typically contain sites that can bind to other proteins or small molecules. Through such binding interaction
nasty-shy [4]

Answer:

Regulatory sites e.g enhancers and silencers

Explanation:

Gene expression involves the synthesis of gene products usually proteins and RNA. However, a certain product might not be needed at all or in small quantity. Gene regulation mechanism is the process that makes this happen. Gene regulation is the mechanism that acts to induce or repress the expression of a gene.

Gene regulation involves controlling the rate and manner of gene expression which is achieved through a set of regulatory proteins called transcription factors. Transcription factors bind to specific regulatory nucleotide sequences and help to turn "on or off" specific genes in the DNA.

Transcription factors can either be ACTIVATORS or REPRESSORS depending on whether they boost or inhibit gene expression. The binding sites for these regulatory proteins called TRANSCRIPTION factors are the regulatory nucleotide sequences on the DNA called enhancers and silencers.

4 0
3 years ago
All cells and many subcellular structures are surrounded by a membrane. Assuming a typical membrane to be about 8 nm wide, how m
Viktor [21]

The typical light microscope at its maximum magnification power has a resolution of 200 nm. The light microscope is able to view and distinguish between two lines or points that are no less than 200 nm apart. Since our membrane of interest is 8 nm apart, it won't be visible under the light microscope. Several such membranes are needed to lined side by side to make the viewing possible. The number of membranes should be, \frac{200}{8} = 25.

7 0
3 years ago
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