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Travka [436]
3 years ago
11

listen to the three examples of sound and related spectrogram. make one observation about each of the three spectrograms

Biology
1 answer:
beks73 [17]3 years ago
4 0

Answer:

Explanation:

Sounds are wave. They are made through vibrations that travels or moves in the air.

Example-Bell rings- sounds gotten when a bell is ringed.

Spectogram is a way in which the strength of loudness can be represented with time visually. Example of spectogram

spectrogram(x) - It returns the Fourier transform of the input signal, x.

Spectogram x, window- This uses windows to separate signals into segments.

Spectogram, window, Nover lap - This make us of nover lap between adjoining segments.

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Q.O.H.E.C.C.C.
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In a tropical forest some leaves are dark green and some are light green. In a population of caterpillars, homozygous dominant d
Sedbober [7]

Answer:

This is an example of "Disruptive selection".

Explanation:

<em>Disruptive selection</em> occurs when <em>selective pressure</em> <em>favor homozygous</em>. In equilibrium, <em>the two alleles might be present or one of them might be lost</em>. If an environment has two extremes, then in these environments, both alleles are presented in homozygous.  

The disruptive selection causes an <em>increase</em> in the two types of <em>extreme phenotypes over the intermediate forms</em>. Limits between one extreme and the other are frequently very sharped. Individuals belonging to one phenotype can not live in the same area as individuals belonging to the other phenotype, due to the traits differences between them, competition, or predation.

Populations show two favored extreme phenotypes and a few individuals in the middle. Individuals who survive best are the ones who have traits on the <u>extremes forms</u>.  Individuals in <u>the middle</u> are not successful at survival or reproduction.

<em>Color</em> is very important when it comes to <em>camouflage</em>. Dark green caterpillars that live in dark foliage and light green caterpillars that live in light foliage can <em>hide from predators</em> more effectively and will live the longest. Intermediate colored green caterpillars that don't camouflage or blend into either will be eaten more quickly.

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The blood glucose level is 7.45.
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The frequency of carriers for a rare autosomal recessive genetic condition is 0.04 in a population. Assuming this population is
sertanlavr [38]

Answer:

E

Explanation:

Hardy-Weinberg principle states that frequency of alelle and genotype will remain constant in the absence of genetic disturbances such as mutation, no change in the DNA sequence, the population must be large and others

the principle is defined by the equation

p² + 2pq + q² = 1

where the frequency of the dominant allele is p, and the frequency of the recessive allele is q. Going by the what is given which is for the carriers is 0.04 = 2pq

substitute the value into the expression

p² + 0.04  +  q² = 1;  The information is not enough to calculate either p or q going by the equation generated.

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Alexandra [31]

The third and last option is correct.


Species in the past (referring to dinosaurs) were more massive.

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Hope it helped,


Happy homework/ study/ exam!

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