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Levart [38]
3 years ago
11

I need help! What significance does density have for earth?

Biology
1 answer:
VladimirAG [237]3 years ago
7 0

Answer:

The atmosphere and Earth's interior are layered by density. Gravity pulls more strongly on denser materials so denser materials are at the center of things. Earth's core, at its center, is denser than its crust. The lowest layer of the atmosphere is denser than the upper layer.

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List 3 examples of a selectively permeable material or item. Explain where it is found or used and why a selectively permeable i
FromTheMoon [43]
Answer;
Examples of selectively permeable materials or items are; 
1. Vacuum filter- it traps dust but allows air through
2. Coffee filter- allows water to pass through, but does not allow the coffee grounds.
3. Colander -used to strain liquid food from foods. it drains water but is not permeable to larger food particles.

Explanation;
Selective permeability means that a material or a substance allows the passage of some molecules or ions and other materials to pass through it, and inhibits the passage of others. 
For example a cell membrane is semi-permeable and thus regulates the transport of materials such that some particles pass through while others can not cross. A semi-permeable membrane allows selective movement of materials, it acts like a filter that allows particles to pass or not according to their size, solubility, electrical charge, or other chemical and physical properties. 

8 0
3 years ago
Read 2 more answers
What is the correct order of geological time scales from largest to smallest?
adelina 88 [10]

Answer:

This hierarchy comprises eons, eras, periods, epochs, and ages from the largest to the smallest

Explanation:

This hierarchy comprises eons, eras, periods, epochs, and ages from the largest to the smallest. All of these are shown in the geological time scale page.

Eon                      Era          Period            Epoch           Age

Phanerozoic Cenozoic Paleogene Oligocene Chattian  Rupelian

The Phanerozoic Eon reflects the period that most macroscopic species — bacteria, fungi, plants, and animals — lived through.

8 0
4 years ago
Classify each description as applying to organisms in one, several, or all of the domains of archaea, bacteria, and eukarya.
noname [10]

The correct descriptions of each of the organisms are as follows:

Archaea:

  • cells do not have a nucleus
  • cells contain genetic material
  • most inhabit extreme environments.
  • prokaryotes

Bacteria

  • cells do not have a nucleus
  • prokaryotes
  • E. coli

Eukarya

  • eukaryotes
  • cells have a nucleus
  • many are multicellular
  • cells have membrane-bound organelles
  • plants

Archaea and Bacteria

  • cells do not have a nucleus
  • cells contain genetic material
  • prokaryotes

All three domains

  • cells contain genetic material

<h3>What are living organisms?</h3>

Living organisms are those things that have life in them.

Living organisms are classified into the following domains:

  • archaea,
  • bacteria, and
  • eukarya

A common feature of all three domains is that they all have genetic material.

In conclusion, living things are classified into three domains.

Learn more about domains of living organisms at: brainly.com/question/16003434

#SPJ1

5 0
2 years ago
For the following questions, please fill in the blank with the correct number of chromosomes (e.g. 4). Please do not spell out t
andrezito [222]

Answer:

Double number of chromosome.

Explanation:

There are 16 chromosomes in G2 phase of the cell cycle because in G2 phase, the replication of DNA occurs which doubles the number of chromosome. It is a gap phase present between replication of DNA and mitosis so it contains 16 number of chromosomes in the cell. After mitosis, the chromosomes number distributed equally among daughter cells.

3 0
3 years ago
What did bhor's model of the atom include that ruthendorfs model did not have ? ​
weeeeeb [17]
Energy levels or cells
8 0
4 years ago
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