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rosijanka [135]
2 years ago
11

How many heart does a human have?

Biology
1 answer:
sergij07 [2.7K]2 years ago
4 0

Answer:

a human has only one heart

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Competitive exclusion is most likely to occur between two (A) closely related species occupying different niches (B) closely rel
labwork [276]

Answer:

Closely related species occupying the same niche.

Explanation:

Competitive exclusion principle states that the two species cannot exist together if they share the same resources. The one species completely exclude the other species from their niche.

Competitive exclusion principle generally occurs between the species that occupy the same niche and are closely related with each other. The competitive exclusion principle first explained between the species <em>P. aurelia </em>and <em>P. caudatum.</em>

Thus, the correct answer is option (B).

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3 years ago
Material use to investigate water, silver, oyxgen gas,carbon dioxide by a scientist
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A scientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas. They are each made of matter. Some are compounds and some are elements. They all contain atoms. [ -best describe all of the materials he is using in the investigation. ]
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Newton's first law of motion states that an object at rest, stays at rest, even if an
Natasha_Volkova [10]

Answer:

True

Explanation:

Newton’s First law of Motion states that an object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an unbalanced force.

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3 years ago
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Energy flow write the term that matches each meaning sum of all ecosystems in the world
velikii [3]
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2) All populations within an ecosystem : Community
</span>A community is all of the populations of various<span> species that </span>sleep in a similar space<span> and </span>act<span> with </span>each other<span>. A community </span>consists<span> of all of the </span>organic phenomenon<span> factors of </span>a part.<span>
3) Interbreeding members of a species in an ecosystem :</span><span> Demes
</span>A deme could be a<span> term for </span>an area<span> population of polytypic species that actively </span>crossbreed<span> with </span>each other<span> and share </span>a definite cistron<span> pool.</span><span>
4) A defined area consisting of biotic and abiotic components : </span><span>An </span>ecosystem
An scheme could be a<span> community </span>created from<span> living organisms and </span>non-conscious parts like<span> air, water, and mineral soil.</span>
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3 years ago
Which of the following help in physical support and transportation of nutrients? A. Xylem B. Veins C. Chloroplasts D. Bundled cy
Ratling [72]
I think it is B but I'm not sure
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