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svp [43]
3 years ago
8

What is the only thing that can scratch corondum?​

Biology
1 answer:
tatuchka [14]3 years ago
6 0

Answer:

The only thing that can scratch Corundum is diamond.

Explanation:

We refer to the Mohs Hardness Scale for the hardness levels. We can see that Corundum is a level 9 which is the second highest so at a level 10 we see diamond, therefore diamond is the only thing that can scratch Corundum.

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_____ produces a clink or sonorous sound​
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Answer:

A sharp, ringing sound made by the collision of sonorous (especially metallic) bodies.

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3 years ago
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Several members of the same family were diagnosed with he same kind of cancer when they were unusually young. Which one of the f
Verdich [7]

Answer:

(c) Inherited a mutation in a gene required for mismatch repair

Explanation:

Gene mutations are occasional changes that occur in genes, that is, the procedure by which a gene undergoes a structural change. Mutations involve the addition, deletion or substitution of one or a few nucleotides of the DNA strand. Mutation provides the emergence of new forms of a gene and, consequently, is responsible for gene variability.

It is common for several members of the same family to have the same genetic mutations, as the gene affected by the mutation may condition a trait that DNA cannot repair. An example of this is the family shown in the question above, where several people were diagnosed with the same type of cancer while still young. What probably happened in this family was that people diagnosed with cancer inherited a mutation in a gene needed to repair incompatibility.

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3 years ago
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What is The gap between two neurons is called <br>​
djverab [1.8K]

Answer:

A synapse.

Explanation:

This is where signals are transmitted through the brain, but cannot connect two neurons. The space is called a synapse.

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3 years ago
What innate immune component is directly responsible for the lysis of the cell membrane of invading microorganisms?
larisa86 [58]

Answer:

The name of the innate immune component is MEMBRANE ATTACK COMPLEX.

Explanation:

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How can reproductive isolation lead to speciation?
hram777 [196]
How can reproductive isolation lead to speciation<span>? If populations cannot mate successfully with one another, genetic differences may accumulate in the populations. Over time they become very different and give rise to new species.</span>
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