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notka56 [123]
3 years ago
6

Two or more atoms can combine to form a molecule. True or false?

Biology
2 answers:
Anarel [89]3 years ago
5 0

Answer:

True

Explanation:

Inessa05 [86]3 years ago
5 0

Answer:

yes, two or more atoms can form a molecule

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Adenine is a component of ATP and is also found in both DNA and RNA.
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Ultrasound scan to rule out polyps or endometrial hyperplasia of the uterus

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The most important primary producers in marine ecosystems are _____. The most important primary producers in marine ecosystems a
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Answer: Diatoms.

Explanation:

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3 years ago
Each biological species is genetically isolated from other species. why do the species evolve independently?
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Species evolve independently possibly due to geographical isolations or behavioural isolations.

Geographical isolation includes the isolation of 2 groups of the same species. Since these 2 groups live in different locations, (e.g. a volcanic eruption resulting in a barrier between one side of an ocean and another side of the ocean), they will have different selection pressures in their different environments as well (e.g. one side of the ocean may have more sunlight and thus more underwater plantations than the other side of the ocean). Natural selection will eliminate those with disadvantageous characteristics (e.g. Fishes that only eat plants and nothing else on the side of the ocean with little plantations) with unfavourable alleles, and select for those with advantageous characteristics (e.g. Fishes are able to eat plants and other organic substances as well on the side of the ocean with little plantations) with favourable alleles.

Since the 2 groups have different selection pressures, natural selection will occur in different ways, selecting for and against different types of fishes with different types of alleles. Also, because of the barrier, they are not able to mate with each other, and there are no mixing of genes from one side of the ocean and the other side. They are genetically isolated. As genetic drift occurs over time, their gene pools become different from each other. Thus, they evolve independently.

Hope this helps! :)
7 0
3 years ago
Choose the term that correctly describes the relationship between these two sugar molecules
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-Structural isomers.

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-Isomers are molecules that have the same molecular formula, but have a different arrangement of the atoms in space.

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-For example, butane and isobutane are structural isomers, also called chain isomers. In chain isomers, the carbon atoms are connected in different orders. Isobutane and butane have a molecular formula of C4H10.

5 0
3 years ago
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