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Tju [1.3M]
2 years ago
11

Students are each given a 20-gram sample of an unknown solid compound in a clear plastic bag. They are instructed to break the m

aterial into smaller parts by gently hitting it with a hammer. Some of the parts break into large chunks and some look like a fine powder.
Biology
2 answers:
sergey [27]2 years ago
8 0

What is the question you are trying to ask?

MA_775_DIABLO [31]2 years ago
5 0
Make sure you finish the question next time look for key words and circle them and circle the numbers so it helps you after you read the question
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How does the changing pH affect animals that live in the ocean?
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The ability of some fish, like clownfish, to detect predators is decreased in more acidic waters. A sudden drop in pH can as cause medical issues, such as comas and seizures in oceanic life. Fish's skeletons are also sensitive to acidity, so their development may be impacted as well.

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2 years ago
Which statement best describes DNA’s relationship to a gene and chromosome?
Leto [7]
Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. ... A trait is any gene-determined characteristic and is often determined by more than one gene.
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3 years ago
Deciding between recycling of conventional plastics and developing biodegradable plastics is a complex issue because:___________
Julli [10]

Answer:

  • <u>Conventional plastics-</u>

"Plastics are typically organic polymers of high molecular mass, but they often contain other substances."

  • <u>Composition</u>-

"Oil-based polymers is currently used in packaging applications. These are virtually all non-biodegradable, and some are difficult to recycle or reuse due to being complex composites having varying levels of contamination.

  • <u>Biodegradable plastics</u>-

"They are largely manufactured from renewable natural resources, to produce biodegradable materials with similar functionality to that of oil-based polymers."

Explanation:

<u>Complex Issue-</u>

  • Diversity of biodegradable materials and their varying properties makes it difficult to make simple, generic assessments such as biodegradable products are all ‘good’ or petrochemical-based products are all ‘bad’.
  • Biodegradable packaging materials are most suitable for single-use disposable applications where the post-consumer waste can be locally composted.
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3 years ago
A living thing that may be unicellular or multicellular
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a single cell is unicellular and many cells is multicellular

Explanation:

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