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Anvisha [2.4K]
3 years ago
7

Which of The Following is a Characteristic of Vertebrates A) An inner skeleton made of bone or cartilage B) Stinging Cells C) A

hard exoskeleton made of chitin harder outer shell
Biology
2 answers:
klasskru [66]3 years ago
4 0
The answer is A) An inner skeleton made of bone or cartilage. Vertebrates have a column of bones that supports the body and protects the spinal cord, while invertebrates are animals that either have a soft body or a hard outer casing covering their body.
andreyandreev [35.5K]3 years ago
3 0
<span>The right option is <span>A) An inner skeleton made of bone or cartilage
</span><span>Vertebrates are all animals that have vertebra (backbone) with skull and several other skeletal bones which form an endoskeleton. Other characteristic of vertebrates include; they are bilaterally symmetrical with two pairs of appendages, they have higher nervous system, the parts of the central nervous system (the brain and spinal cord) are in the skull and vertebral column respectively and their circulatory system is closed. 
</span></span>
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"DNA denatures at a higher temperature than does protein, yet its structure depends on relatively weak hydrogen bonds. Why the d
Reika [66]

The option are not given and the options are:

Proteins are denatured by breaking covalent bonds.

Linear molecules like DNA are inherently stable.  

Individual hydrogen bonds may be weak, but DNA structure is stabilized by many thousands or millions of these bonds - far more than found in proteins.

The statement is incorrect; it actually takes far more energy to denature proteins than it does to denature DNA.

Answer:

The correct answer is- Individual hydrogen bonds may be weak, but DNA structure is stabilized by many thousands or millions of these bonds - far more than found in proteins.

Explanation:

Proteins become denatured when it looses its three-dimensional structure. Disulfide bond and hydrogen helps in stabilizing the three-dimensional structure of proteins and if these bonds break due to any factor protein lost its structure and function.

DNA is made up of a large amount of hydrogen bond because in AT base-pairing two hydrogen bonds are required and in GC base pairing three hydrogen bonds are required. Therefore it can be concluded that as more hydrogen bonds stabilizes DNA than protein its melting temperature is higher than protein.

3 0
3 years ago
The ability to change color to avoid predators is a what?
lina2011 [118]

im pretty sure its adaptation <3

6 0
2 years ago
Read 2 more answers
For a science fair project, two students decided to repeat the Hershey and Chase experiment, with modifications. They decided to
anygoal [31]

Answer:

Explanation:

The aim of the Hershey and Chase experiment was to show that DNA and not proteins are the genetic material.

Proteins are made up of amino acids which also has a nitrogenous base. Since the whole point of the experiment was to differentiate between the two i.e. show which one is the genetic material, it would be impossible to differentiate between DNA and proteins if the nitrogenous base was labelled.

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Below statements are true:

<span>Acetylation of histone tails is a reversible process.
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</span><span>Methylation of histone tails in chromatin can promote condensation of the chromatin.
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