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Mariana [72]
3 years ago
8

Which of the following sequences represents the hierarchy

Biology
1 answer:
balandron [24]3 years ago
7 0

Answer:

4) molecule, cell, organ system, population, ecosystem, biosphere

Explanation:

Various biomolecules such as carbohydrates, proteins, lipids, etc. together make the cells. Cells are the structural and functional units of life. A group of cells destined to perform specific functions makes tissues and various specific tissues together make an organ.

An organized group of tissues and organs that work cooperatively to perform a specialized set of functions is called an organ system. For example, the digestive system includes organs involved in the breakdown of nutrients.

A group of organisms of the same species that live in a defined geographic area at the same time make a population. Ecosystem refers to an interacting system including a biotic community and its nonliving, physical environment.  The biosphere includes all of the parts of Earth where life forms exist and include the atmosphere, the hydrosphere and the lithosphere.

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After studying the diagram above, Jenny concluded that the layer of clay was older than the layers of sand and gravel.
ss7ja [257]

Both Jenny and Jack are correct.

Explanation:

According to the principle of superposition, both Jenny and Jack are perfectly correct.

The principle of superposition states that the oldest bed is at the bottom and the youngest is on top in an undeformed sequence of rock strata.

From this principle we can see that the sequence of the bed is:

 

  • soil                                                               Youngest rock layer
  • loam
  • sand and gravel
  • loam
  • clay
  • impermeable rock (limestone)                      Oldest rock layer

We can see that truly the clay is older than the sand and gravel according to Jenny.

The limestone is also older than loam according to Jack.

Learn more;

Sedimentary rocks brainly.com/question/9131992

#learnwithBrainly

4 0
3 years ago
Which source of genetic variation produces the greatest variety?
kotykmax [81]
The Genetic Variation, Mutagens produce the greatest variety. This category includes radiation (UV light, Xrays), chemical, etc. <span>They change DNA/RNA, thereby increasing the number of mutations, which in turn, leads to producing the greatest variety.</span>
3 0
3 years ago
What was the Homestead Act and why did it fail?​
Sidana [21]

Answer:

Newcomers' failures at homesteading were common due to the harsh climate, their lack of experience, or the inability to obtain prime farming lands. In some areas “taking the cure” – declaring bankruptcy or simply abandoning the land claim – became common.

Explanation:

Google

3 0
3 years ago
In the meselson-stahl experiment, cells were grown for one generation in growth medium containing a relatively heavy nitrogen is
elena55 [62]

Out of the following give choices;

a. All DNA strands contained only the heavy nitrogen isotope.

b. Half of the DNA strands contained only the light nitrogen isotope.

c. All DNA strands contained both heavy and light nitrogen isotopes.

d. All DNA strands contained only the lighter nitrogen isotope.

The answer is b. Meselson–Stahl experiment demonstrated the semi-conservative model of DNA replication. When DNA is replicated, one strand of the new double helix strand is the parent's strand while the other is the newly synthesized one. This made the semiconservative model stand out over the other two, dispersive and conservative models.






7 0
3 years ago
If a chemical that interrupts cell division is added to a culture liver tissue,which process would stop?
BaLLatris [955]
Mitosis would be stopped

8 0
3 years ago
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