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andreev551 [17]
3 years ago
14

Hich statement best describes the components of nucleic acids? They are made up of chains of amino acids. They are made up of ca

rbon, hydrogen, and oxygen only. They are made up almost entirely of carbon and hydrogen. They are made up of nitrogen bases, sugars, and phosphates.W
Biology
1 answer:
Levart [38]3 years ago
3 0
Nucleic acids are made up of nitrogen bases, sugars, and phosphates.
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Photosynthesis occurs both in plants and animals true or false
GrogVix [38]

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false!

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What substance cannot be broken down into other substances
Dafna1 [17]

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Element

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Is a substance that can't be broken down into other substances.

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Why is it impossible for male calico cats to exist
Kisachek [45]

Answer:

genetics

Explanation:

calico cats must also inherit a gene unrelated to the X and Y chromosomes that codes for white fur. Because male cats have one X chromosome with code for black or orange and one Y chromosome with no color genes, they cannot technically be calico. About one in every 3,000 calico cats is born a male, and, unfortunately, don't live as long as female calicos due to their genetic abnormalities. XXY Syndrome renders male calicos sterile and can be the root cause of many other health problems

8 0
3 years ago
Limestone formations in caves are considered what kind of weathering
madreJ [45]

Answer:

Chemical weathering

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Caves are formed by the dissolution of limestone. Rainwater picks up carbon dioxide from the air and as it percolates through the soil, which turns into a weak acid. This slowly dissolves out the limestone along the joints, bedding planes and fractures, some of which become enlarged enough to form caves.

Chemical weathering involves the decomposition of rocks due to chemical reactions between minerals such as calcite with water and gases in the atmosphere (e.g. carbon dioxide and sulphur dioxide). The solution of soluble minerals is particularly important in limestone landscapes.

Solutional caves or karst caves are the most frequently occurring caves. Such caves form in rock that is soluble; most occur in limestone, but they can also form in other rocks including chalk, dolomite, marble, salt, and gypsum.

Essentially, water reacts with carbon-dioxide to form carbonic acid. It then seeps slowly through the roof of the cave, depositing calcium carbonate, which hardens and builds up over time to form a stalactite.

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3 years ago
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