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Tanzania [10]
3 years ago
7

what does the global conveyor belt reveal about the connectivity of water in the oceans? how could a change in the path of the g

lobal conveyor belt impact the biodiversity of ocean ecosystems?
Biology
2 answers:
skad [1K]3 years ago
8 0
General paradigms of species extinction risk are urgently needed as global habitat loss and rapid climate change threaten Earth with what could be its sixth mass extinction. Using the stony coral Lophelia pertusa as a model organism with the potential for wide larval dispersal, we investigated how the global ocean conveyor drove an unprecedented post-glacial range expansion in Earth׳s largest biome, the deep sea. We compiled a unique ocean-scale dataset of published radiocarbon and uranium-series dates of fossil corals, the sedimentary protactinium–thorium record of Atlantic meridional overturning circulation (AMOC) strength, authigenic neodymium and lead isotopic ratios of circulation pathways, and coral biogeography, and integrated new Bayesian estimates of historic gene flow. Our compilation shows how the export of Southern Ocean and Mediterranean waters after the Younger Dryas 11.6 kyr ago simultaneously triggered two dispersal events in the western and eastern Atlantic respectively. Each pathway injected larvae from refugia into ocean currents powered by a re-invigorated AMOC that led to the fastest postglacial range expansion ever recorded, covering 7500 <span>km in under 400 years. In addition to its role in modulating global climate, our study illuminates how the ocean conveyor creates broad geographic ranges that lower extinction risk in the deep sea.</span>
DIA [1.3K]3 years ago
7 0

Is there an shorter version of the answer? I cannot find the answer through all the information.


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Part A
svetlana [45]

Considering the definition of density, you obtain that:

  • Part A: the density of gold is 19.3 g/cm³.
  • Part B: the density of iron is 7.8 g/cm³.

<h3>Definition of density</h3>

Density is defined as the property that allows to measure the amount of mass in a certain volume of a substance.

The expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

density= mass÷ volume

It can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.

<h3>Density in this case</h3>

In this case, you know that:

  • A sample of gold has mass of 38.6 grams and a volume of 2 cm³.
  • A sample of iron has a mass of 46.8 grams and a volume of 6 cm³.

Replacing in the definition of density:

  • Gold: density= 38.6 g÷ 2 cm³
  • Iron: density= 46.8 g÷ 6 cm³

Solving:

  • <u><em>Gold: density= 19.3 g/cm³</em></u>
  • <u><em>Iron: density= 7.8 g/cm³</em></u>

In summary, the density of gold is 19.3 g/cm³ and the density of iron is 7.8 g/cm³.

Learn more about density:

brainly.com/question/952755

brainly.com/question/1462554

#SPJ1

4 0
1 year ago
Cortical areas that are not primarily concerned with sensory motor or language functions are
Tasya [4]

Cortical areas that are not primarily concerned with sensory motor or language functions are cortical associated areas.  

The cortex association areas are the areas, which perform the function of detection of stimulus, which cannot be easily detected by the help of the primary cortex.  

They are not directly concerned with the sensory and motor information. They are mainly responsible for the interpretation, integration, and generation of action on the information from other areas of cortex.  


4 0
3 years ago
Cathy hypothesized that corn would not grow in mud. To test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soi
Softa [21]
The seeds she planted in the mud grew quicker because the mud is holding nutrition for the corn. The soil is a good guess to make, but the mud is more dense and moist. The water wouldn't have had more nutrients than the mud, just because the mud holds breakdown matter and other things from other plants.
7 0
2 years ago
How do the structures within a cell allow it to specialize
Simora [160]

The structures allow the cell to perform specific functions.  

3 0
3 years ago
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The energy role of a grizzly bear is that of a {n} ------because it cannot make its own food
Misha Larkins [42]
Your answer is Consumer
4 0
3 years ago
Read 2 more answers
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