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Molodets [167]
3 years ago
7

Name the three structures of the mouth that aid in digestion.

Biology
2 answers:
nataly862011 [7]3 years ago
7 0

Answer: Tongue, teeth and salivary gland.

Explanation:

The tongue in the mouth helps in pushing the food towards teeth and also helps in crushing the food to form bolus.

The teeth present in the mouth helps in breaking the big food particles to the smaller food particles. The chewing and crushing of food helps in digestion as it breaks the food in smaller size.

The salivary gland releases enzymes that helps in the digestion of carbohydrates present in the food.

yanalaym [24]3 years ago
3 0
Tongue, epiglottis and sublingual/parotid or submaxillary glands (Salivary glands). Hope this is what you were looking for :)
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A longshore current moves down a sandy coastline, from north to south. Developers build a long, concrete breakwater at one point
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Every year _______ species go extinct. a. 3 b. 72 c. 1000 d. 20000 please select the best answer from the choices provided
Galina-37 [17]

The experts calculate that between 0.01 and 0.1% of all species will become extinct each year. If the low estimate of the number of species out there is true - i.e. that there are around 2 million different species on our planet - then that means between 200 and 2,000 extinctions occur every year.

What is extinction?

  • Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species.
  • The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence.
  • More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out.
  • It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, mammoths, ground sloths, thylacines, trilobites and golden toads.
  • Through evolution, species arise through the process of speciation—where new varieties of organisms arise and thrive when they are able to find and exploit an ecological niche and species become extinct when they are no longer able to survive in changing conditions or against superior competition.
  • The relationship between animals and their ecological niches has been firmly established.
  • A typical species becomes extinct within 10 million years of its first appearance, although some species, called living fossils, survive with little to no morphological change for hundreds of millions of years.

To learn more about extinction: brainly.com/question/14482178

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7 0
2 years ago
We also know that the astronaut’s weight on Earth is 156.6 pounds. Which equation models the situation? no links pls they didn't
Klio2033 [76]

Given what we know, we can confirm that the equation to model the situation can be created by multiplying the mass of the astronaut by the force of gravity on earth.

<h3>What is Mass and the force of gravity?</h3>
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  • What we refer to as weight, is really the force being applied by an object together with the force of gravity.
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  • Together will mass, these forces create what we know as weight.

Therefore, we can confirm that the equation to model the situation can be created by multiplying the mass of the astronaut by the force of gravity on earth, which would be 7.2 kg of mass multiplied by 9.807 m/s² which will result in a "weight" of 156.6 pounds or 71 kg.

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8 0
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Answer:

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  • Or, call the police.
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