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anyanavicka [17]
3 years ago
13

What is a substance?

Biology
2 answers:
Dafna11 [192]3 years ago
7 0
A substance is usually a form of matter having constant chemical composition and characteristic properties.
fomenos3 years ago
6 0

Answer:

the real physical matter of which a person or thing consists and which has a tangible, solid presence.

Explanation:

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Approximately 2% of all people have what eye color?
777dan777 [17]
The answer is green. 
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3 years ago
This describes the dynamic changes between sedimentary metamorphic and igneous substances
rodikova [14]

Answer:

This is a solid substance that is composed of minerals. This describes the dynamic changes between sedimentary, metamorphic, and igneous substances. This occurs are mid-ocean ridges where a new oceanic crust is formed and then slowly moves away from the ridge.

Explanation:

4 0
3 years ago
Read 2 more answers
What is the relationship (embryological, functional) between your lungs and the "gas bladder" of a perch?
DanielleElmas [232]

"Gas bladders" and lungs are similar organs, although they serve different functions.

Both of them develop from a location in the upper throat i.e. the pharynx and are used to manipulate gases. They both contain a good blood supply.

However, the lung is used for breathing and is often found in land vertebrates, while on the other hand, the gas or swim bladder is used in the regulation of buoyancy and the latter is found in all other bony fishes e.g. perch.

Perch use the swim bladder to control their buoyancy by filling it with oxygen from their gills using a gland, which is known as a gas gland. This expands the bladder, thereby pushing the fish toward the surface of the water.

To learn more about swim bladder here

brainly.com/question/14431269

7 0
1 year ago
How are growth and reproduction related
PolarNik [594]
Growth is needed for reproduction and reproduction is need for growth so you could say that they are dependent upon each other
7 0
3 years ago
Match the human activity with how it intensifies the greenhouse effect . (Sorry couldn’t get a better photo)
alexandr1967 [171]

Answer:

1: Burning of fossil fuel

2: Deforestation

3: Waste disposal in landfills

Explanation:

Burning of fossil fuel is the one of the primary cause of increased level of carbon dioxide in air. Deforestation refers to uncontrolled cutting down of trees which in turn increases the level of carbon dioxide in air. Plants are the natural resources that remove the carbon dioxide from air through the process of photosynthesis. Waste disposals in landfills emits methane which is one of the greenhouse gas.

8 0
4 years ago
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