The geographic poles both wander statement is true.
<u>Explanation:</u>
Earth has geographic North and south poles as well as <em>magnetic south and North poles.</em> Magnetic North is geographic south and magnetic South is geographic North. The Geographic <em>poles of the earth</em> doesn’t remain stationary
Occurrence of perturbations in the earth’s movement doesn’t allow the geographic poles of <em>earth to remain stationary</em>. Over a period of few years the earth’s geographic poles move by few meters.
<em>Cartographic drawings</em> require stable <em>geographic poles</em> and thus use the averaged location of geographic poles.
This is because toxins are ingested by organisms and accumulate in the fatty tissues. Theses toxins then become more concentrated in successive trophic levels of a food web biological magnification. Magnification occurs because the biomass at any given trophic level is produced from a much larger biomass ingested from the level below and therefore, top-level carnivores tend to be the organisms most severely affected by toxic compounds.
The traits of the anatomically modern humans include the following below:
- High vertical forehead
- Round and tall skull
- Small browridges.
<h3>What is Anatomy?</h3>
This is defined as a branch of science which involves the study of the body structure of humans, organisms etc and how they are responsible for certain types of activities performed by certain parts of the body. For example, the skull is a structure which helps to protect the brain and other vital organs which are present in the body system.
Due to evolution, the modern experienced some changes anatomically which include round and tall skull and a high vertical forehead with the other features which are mentioned above. This helps it to see objects from different directions.
This is therefore the most appropriate anatomically modern human traits present today.
Read more about Anatomy here brainly.com/question/896286
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A human ear on average can tell the difference between sound waves at the range of 20Hz to about 20kHz (20,000 Hz). So the lower range will be at lesser than 20Hz.