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Oksanka [162]
3 years ago
5

Pick one galaxy and describe it in detail. Choose either a spiral, elliptical, or irregular galaxy. Make sure that your

Biology
1 answer:
kobusy [5.1K]3 years ago
3 0

A spiral galaxy is a galaxy where the stars and gas clouds are concentrated mainly in one or more spiral arms. Most spiral galaxies consist of a flat, rotating disk containing stars, gas and dust, and a  concentration of stars known as "the bulge". The disk of stars orbiting the bulge separates into arms that circle the galaxy. These spiral arms contain gas and dust and younger stars that shine brightly before they dull. Most of the galaxies that scientists have discovered so far are spiral galaxies. One example of a galaxy in our solar system is The Milky Way. Spiral galaxies make up roughly 72 percent of the galaxies that scientists have observed. How the spiral arms form continues to puzzle scientists. One theory suggests the galaxy arms could be the result of density waves traveling through the outer disk. Galaxies at a whole are quite a fascination.

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Katrina has low levels of leukocytes in her body. Which is most likely her health concern?
dimaraw [331]

Answer:

dangerous loss of blood due to inability to stop bleeding

organ damage due to lack of oxygenated blood in body

heart attack due to partially blocked vena cava

Explanation:

8 0
4 years ago
Stem cells found adult tissue such as in bone marrow brain muscle skin and liver are only capable of what
mafiozo [28]

The correct answer is self-renewal.  

The hemopoietic stem cells, found in the red bone marrow, is a usual example of adults stem cells. These stem cells, divide into different kind of blood cells. The bone marrow also comprises a second kind of adult stem cell called mesenchymal or stromal stem cell. The adult stem cells have also been witnessed in various other kinds of tissues like skeletal muscle, brain, skin, blood vessels, heart, and the teeth.  

These adult stem cells possess the tendency to differentiate into other kinds of cells, and can also differentiate in self-renewal to generate more of the similar kind of stem cells.  

Self-renewal refers to the procedure by which the differentiation of stem cells takes place to produce more stem cells, continuing the pool of stem cells all through the life. Self-renewal is considered as the differentiation with the sustenance of the undifferentiated state.  


5 0
3 years ago
Which of the following is NOT part of the First Line of Defense?
kondor19780726 [428]

Answer:

c (Sebum )( oil on skin )

Explanation: Cuz it is the best solution for girl's self defense if they don't have any pepper spray.

4 0
3 years ago
What is a good property of an indicator? Name two
DIA [1.3K]

Relevant: It measures an important part of an objective or output;

<span>Objective: </span>If two people measure the same indicator using the same tool, they should get the same result. The indicator should be based on fact, rather than feelings or impressions (another way to say this is to say that it should be Measurable);

Available: Indicators should be based on data that is readily available, or on data that can be collected with reasonable extra effort as part of the implementation of the (sub-) project.

Realistic: It should not be too difficult or too expensive to collect the information (related to the next one in the list);

Specific: The measured changes should be attributable to the project, and they should be expressed in precise terms

6 0
3 years ago
What is the smallest unit of matter that has characteristic properties of its element? 1.atom 2.molecule 3.gas 4.compound
Charra [1.4K]
Atom is the smallest
3 0
3 years ago
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