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tester [92]
3 years ago
9

How do animals get their nitrogen

Biology
1 answer:
marishachu [46]3 years ago
7 0
The answer is d because
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Evidence for evolution includes the presence of _______________________, which are similar structures shared by different specie
Ann [662]
The answer is <span>d. homologous structures.

Homologous structures are </span><span>similar structures shared by different species. For example, the anatomy of joints in bones of birds and dinosaurs, support the idea that these two groups have a common ancestor. But since these two groups are different enough to be separated into different classes, it can be concluded that they evolved from the common ancestor.</span>
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2 years ago
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A population of 1000 individuals is found to have an almost
mestny [16]

Answer:

The hardy-Weinberg OR Hardy- Weinberg equilibrium is the model that describes that the frequency of genotype and allele frequency remain constant if there is no evolutionary influences, generation to generation.

According to this model:

p+ q = 1

p² + q²+ 2pq= 1

Thus, the given case does not follow the Hardy Weinberg principle which means there is some type of influence of the evolutionary change is occurred in the particular population.

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3 years ago
Imagine that you are studying the control of β-globin gene expression in immature red blood cells (mature red blood cells contai
lozanna [386]

Answer:

Silencer

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Silencers are the position and orientation free sequences that are present outside the protein-coding sequence of a gene. Silencers serve as a binding site for some transcriptional regulatory proteins that tend to inhibit gene expression. Binding of these "repressor" proteins to the silencers inhibits the gene expression.

The deletion of silencers from DNA would increase the rate of the gene expression as the inhibitory transcription regulatory proteins do not have binding sites to inhibit the gene expression. Therefore, the deletion of silencer sequences of the beta-globin gene would have caused the increased rate of its expression.

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2 years ago
Lights is produced by the_____ force
Dmitrij [34]

Answer:

The electromagnetic force is responsible for generating visible light as well as radiation in other wavebands not detectable by the human eye. As electrons and protons fly around bumping into each other in a light source, the electromagnetic force produces photons of all wavelengths across the electromagnetic spectrum.

Explanation:

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The cilia on this parecium are ised to propel the protozoan and also to
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