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grigory [225]
3 years ago
13

Which statement is NOT true about the universe? A) Stars have the same brightness, color, and mass. B) New stars and galaxies ar

e discovered every year. C) Galaxies are significantly larger than solar systems. D) A galaxy contains billions of stars and possibly solar systems.
Biology
2 answers:
Rama09 [41]3 years ago
7 0
I believe the correct answer is A.
choli [55]3 years ago
3 0

Answer:

A) Stars have the same brightness, color, and mass.

Explanation:

Stars are celestial bodies that have their own light and differ from each other in terms of brightness, color and mass. They are actually giant spheres composed of gases that produce nuclear reactions, but thanks to gravity, they can stay alive (without exploding) for trillions of years. In our galaxy - the Milky Way - there are over a hundred billion stars. The sun is one of them.

There are red, yellow, white and blue stars. Stars emit lights of different colors due to their temperature. The red ones, with about 3000º C, are the ones with the lowest temperature; while at around 40000º C, the blue ones have the highest temperature.

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Match the following. 1. the basic building block of all forms of life resolving power 2. the idea of Schleiden and Schwann that
Roman55 [17]

Answer:

1. Cell

2. cell theory

3. Organismal theory

4. resolving power

Explanation:

The cell is the smallest known unit of all living organisms. They are called the building blocks of life. An organism can be unicellular (made up of one cell) or multi-cellular (made up of many cells).

2. Cell theory was formulated and developed  by Schleiden, Schwann, and Virchow. They are considered as the basic principles of biology.

It states:

1. Living organisms are made up of cells.

2. Cells are the basic unit of life.

3. Cells are formed from pre-existing cells.

4. Energy flows inside the cell.

5. DNA is passed on from cell to cell.

6. All cells have the same basic chemical composition.

3. Organismal theory is the intended counter-argument of the cell theory. It was developed by Reichert, Strasberger, Sherrington, and Pavlov. It argues that the basic unit of life is the organism itself, suggesting that an organism came about from a cell that expanded.

4. Resolving power is the ability of an optical instrument like a microscope or a telescope to view objects that are close together as separate, abling the viewer to distinguish the two from each other.

5 0
3 years ago
Describe two examples of negative effects air pollutants have on the human respiratory<br> system
Serjik [45]

Answer:

irritate people's breathing, ling cancer, asthma

Explanation:

Particulate matter in the air decreases life expectancy according to many researchers. Pollutants such as ozone irritate people's breathing, trigger asthma symptoms and cause lung and heart diseases. Exposure to environmental tobacco smoke causes many severe respiratory health problems such as asthma and lung cancer.

5 0
3 years ago
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When sediments deposit in lakes or oceans, how do they lay? in large vertical mounds that spread out towards thin horizontal lay
Taya2010 [7]
"In flat horizontal layers" is the one among the following choices given in the question that describes the way how <span>sediments deposit in lakes or oceans. The correct option among all the options that are given in the question is the third option. I hope that this is the answer that has come to your desired help.</span>
8 0
3 years ago
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What is the best description foro mechanical waves
Nataly [62]
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4 0
4 years ago
PLEASE HELP 6TH GRADE SCIENCE
bixtya [17]

Answer:

There are four main stages in the water cycle. Evaporation water can go to the clouds from about anywhere that has water ,

condensation the vapor in the cloud turns back to a liquid ,

Precipitation rain ,

and collection water that falls from the clouds as rain, snow, hail or sleet, collects in the oceans, rivers, lakes, streams. Most will infiltrate (soak into) the ground and will collect as underground water.

If a step was removed from the cycle then it there would be no water coming down. Let’s say if Precipitation was removed then what would happen. The water would be stuck up into the clouds .

The ice would be melting like it is right know and the polar bear would be going extinct because like off of a show polar bears can’t swim far and for let’s say that someplace would change like the desert would not be so hot.

A weather front is a transition zone between two different air masses at the Earth's surface. Each air mass has unique temperature and humidity characteristics. I think.

7 0
3 years ago
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