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gogolik [260]
2 years ago
5

Has all the matter and energy in the universe always existed or are completely new

Biology
1 answer:
Nookie1986 [14]2 years ago
5 0

Answer:

no

Explanation:

matter can neither be created nor destroyed so all matter is reused

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Curvatures of the spine serve the body by ________.
Nataly_w [17]
Spine or Vertebral column is composed of a series of 31 bones known as vertebrae.Spine or Vertebral column is composed of a series of 31 bones known as vertebrae. Curvature of the spine serve the body by giving additional springiness and flexibility to the spine by absorbing the shock Curvature of the spine serve the body by giving additional springiness and flexibility to the spine by absorbing the shock.
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3 years ago
Identify some beverages that are mixtures. Classify them as solutions, suspensions, or neither. Explain your classifications.
Minchanka [31]

Answer:

See explanation.

Explanation:

Hello.

In this case we can for instance take into account the following mixtures:

- Orange juice.

- Tea.

- A soda.

- Salty water

- Coffee.

Thus, since the orange juice is a suspension as long as it contains different sizes of orange pulp particles that cannot be dissolved mostly because of its organic nature.

Tea can be a solution when we place a tea bag in a cup with warm water since just soluble components of tea are successfully dissolved in the water. Moreover, homemade tea based on some plants are fruits may behave as a suspension due to the oraginic particles that are not dissolved in the water yet suspended.

A soda is a solution of some water-soluble compounds, gaseous soluble carbon dioxide and water which are homogeneously distributed in the solution.

Salty water can be a solution if you put some salt in warm or just cold water and wait until it dissolves completely.

Coffee can be also a solution or suspension depending on how it is made, which type of coffee is used and the amount of coffee added to the hot water.

Best regards.

5 0
3 years ago
Which pair of Earth's sphere's interact the most when ocean waves break onto a beach?
Advocard [28]

Answer: geosphere and hydrosphere

Explanation:

The pair of Earth's sphere's interact the most when ocean waves break onto a beach are the geosphere and hydrosphere.

The geosphere includes the landforms, minerals, rocks, and every other process which gives the surface of the Earth its shape.

The hydrosphere is the part of the Earth's sphere which consists of water. It is made up of underground water, water on the Earth's surface and also the water that is in the air.

3 0
3 years ago
What is an anatomical features shared by bats bears and beluga whales that provides evidence of their common descent?
ArbitrLikvidat [17]

Answer:

The types of DNA and the bones structure

Explanation:

bc many of these animals had descends of other animals and we can see it by the bone structure that they are almost the same

7 0
3 years ago
What does it mean when pathogens are referred to as contagions?
Triss [41]
A pathogen is a disease carrying vector that has the ability to spread using a variety of different mechanisms. A pathogen that is a contagion has the ability to spread through touch. An example of such a pathogen would be the one that results in staph infections.
4 0
3 years ago
Read 2 more answers
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