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Ulleksa [173]
2 years ago
8

Which statement describes the role of the organism indicated by the blue arrow in the food web?

Biology
1 answer:
Irina18 [472]2 years ago
4 0
Producers bring energy into the ecosystem by making organic molecules from sunlight or chemical compounds. Producers bring new energy into an ecosystem by breaking down inorganic materials and making new ones.
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Scientific evidence suggests that the entire human population descended from just several thousand African migrants about 50,000
zhannawk [14.2K]

Answer: Fossils and primitive drawings in several digs around the world continents.

Explanation: I would expect to find fossils and primitive drawings of these several thousand African migrants on different areas around the world. I would like to find primitive bones, specially skulls and teeths and stones with drawings and old writings representing the life of these small population in Africa who made the entire human population.

5 0
3 years ago
A major volcanic belt known as the ______ circles the Pacific Ocean.
mr Goodwill [35]
<span>A major volcanic belt known as the ring of fire circles the Pacific Ocean. The Pacific Ring of Fire </span><span>is an area where a large number of earthquakes and volcanic eruptions occur in the basin of the </span>Pacific<span> Ocean.</span>
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3 years ago
How many oxygen molecules can one hemoglobin molecule transport?
Zigmanuir [339]

Answer:

four oxygen molecules

Explanation:

The hemoglobin molecule has four binding sites for oxygen molecules: the iron atoms in the four heme groups. Thus, each Hb tetramer can bind four oxygen molecules.

5 0
2 years ago
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omeli [17]

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cell wall, chloroplasts and other specialized plastids, and a large central vacuole

Explanation:

8 0
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Sexual reproduction increases the genetic variation of a species because
Sergeeva-Olga [200]
The answer is C. Alleles form your genetic makup :)

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