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IRISSAK [1]
2 years ago
15

How does the heart muscle differ from the muscle in your arm?

Biology
2 answers:
Marat540 [252]2 years ago
7 0

Answer:

Unlike skeletal muscle tissue which you can control, cardiac muscle tissue works to keep your heart pumping through involuntary movements

Diano4ka-milaya [45]2 years ago
6 0

Answer:

While skeletal muscles are arranged in regular, parallel bundles, cardiac muscle connects at branching, irregular angles, called intercalated discs. Striated muscle contracts and relaxes in short, intense bursts, whereas smooth muscle sustains longer or even near-permanent contractions.

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What might the shape of the skull and the supraorbital height tell us about each species?
Sladkaya [172]

Answer: The shape of the skull and the supraorbital height tell us the following about each species-

  • It can tell us about the intelligence of species and what all senses they were dependent upon for their survival
  • Most of the species possess similar skulls as mostly their structures are  oval shaped, sloped or round shaped.
  • Species have different food habits that is determined by the teeth, which vary from long and dull to short and dull.
  • Variation in teeth and face shapes could also be due to different geological locations.
  • In particular, the foramen magnum be located where the spine connects can be attributed to how the species gathered food through hunting and what kind of food they sought after.
  • Overall, the shape and the supraorbital height of each skull informs us the advantages and disadvantages each species had in its ecosystem.
  • It also tells what probable causes of death would be when the species died.
8 0
2 years ago
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A biologist has been studying two populations of trout in Montana for the last 25 years, when the two populations were establish
ludmilkaskok [199]

Answer:

Positive natural selection.

Explanation:

The positive natural selection is a type of natural selection that increases the frequency of an allele or trait when it is advantageous for the population. What happened in the example is that the mouth with the slight change in  morphology (trait)  was more advantageous for the population in the south in relation to the  ancestral morphology  (still preserved in the population in the north), and therefore its frequency increased. This, in turn, is due to the fact that the food (prey) is not the same in the two habitats (north and south).  The specific prey in the south,  caused the new morphology to be selected, (increasing the frequency of individuals with the new mouth),  becasue probably that trait allows the trouts in the south to hunt more effectively.

8 0
3 years ago
The diagram shows a straight chain of glucose molecules.
KiRa [710]
The answer to your question is Starch
6 0
3 years ago
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Describe how different types of models could be used to research a disease. Make a list of questions you would ask.
Leto [7]

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A disease model is an animal or cells displaying of the pathological process that are observed in the actual human or animal disease.

8 0
3 years ago
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The processes of photosynthesis and cellular respiration are complementary. During these energy conversions, some energy is
Nataly_w [17]

Answer:

E I think is the correct answer but in not 100% positive

Explanation:

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2 years ago
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