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Alchen [17]
3 years ago
9

There are ___________ pair of true ribs.

Biology
2 answers:
Serga [27]3 years ago
8 0
There are 7 pair of true ribs.
Bad White [126]3 years ago
5 0

Answer:

7

Explanation:

There are 12 total pairs of ribs. 1-7 are attached directly to the sternum by costal cartilages, making them true pairs. 8-10 are fake pairs, which means they're attached indirectly to the sternum. And 11 and 12 and free floating ribs, meaning they aren't attached.

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The reaction below shows a system in equilibrium. How would an increase in the concentration of chemical A affect this reaction?
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Details: This is because when a reactant is added equilibrium must shift to the right to produce more product to balance out.

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Estudia la materia, su estructura, composición y<br> transformaciones.
Paraphin [41]

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4 years ago
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Use the following information to answer the question.
marysya [2.9K]

If the isthmus formed gradually rather than suddenly, the morphological species, biological species, and phylogenetic species concepts.

<h3>What is Isthmus genetical species?</h3>

The formation of the Isthmus of Panama, a slender land bridge that connects North and South America, caused the Pacific and Caribbean populations of marine organisms to split off about 3 million years ago.  On both sides of the isthmus, different species of snapping shrimp have been studied. There appeared to be seven pairs of species, with one species of each pair being found in the Pacific and the other in the Caribbean, according to the morphological species concept.

The various species pairs inhabit slightly different ocean depths. These species pairs, which are divided by the isthmus, were indeed the closest relatives of one another, according to the researchers' estimates of phylogenies based on mitochondrial DNA sequences.

To learn more about isthmus visit:

brainly.com/question/24148015

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7 0
1 year ago
What are the three animals types
Agata [3.3K]

Answer:

Explanation:

Three different types of animals exist: herbivores, omnivores, and carnivores.

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