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nydimaria [60]
3 years ago
6

Good observations are not critical to scientific investigations. True False

Biology
1 answer:
Yakvenalex [24]3 years ago
6 0
The answer is false.
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Silk moth is called queen of fibre,why?​
Natali5045456 [20]

Answer:

silk moth are animals whose cocoons are used to make silk.

Explanation:

silk is a fibre or we can say a luxurious and expensive fibre which is used in making silk clothes. They are highly soft and smooth!

7 0
3 years ago
1. A mutation of a human gene blocks harmful viruses from infecting cells. How can the mutation be classified?
Yuri [45]

Answer:

It is a beneficial mutation.

Explanation: Mutations are permanent changes in the nucleotide sequence of a DNA. Mutations can beneficial, neutral and harmful or deleterious. When change in the nucleotide sequence of DNA a mutation enhances the effectiveness of a protein or improves the protein function, it is said to be beneficial. When a mutation causes the synthesis of a protein which have the same amino acid as the original protein and performs the same function as the original protein, it is said to be silent or neutral. When a mutation results in the synthesis of a protein with an altered amino acid sequence and a nonfunctional protein, it is said to be harmful.

3 0
3 years ago
The____________are very small blood vessels constituting the end of an artery or vein where the exchange of vital substances tak
solmaris [256]
Answer: the capillaries.

<span>The blood capillaries are blood vessels with very small caliber. They form the blood distribution and collection network in cells. They are the communication between branches originating from the arteries and with the smaller veins. It is on the walls of the capillaries that occurs <span>the exchange of water, oxygen, CO2,  other nutrients and chemical residues.</span></span>
8 0
3 years ago
Why use needle loop to prepare fungi slide? Please, help me
yulyashka [42]

Answer:

The needle loop is use to transfer fungi to a soft agar and this will cause or create more fungal growth to occur in the slide.

Explanation:

Needle loop is a tool or device use in microbiology to inoculate microorganisms like bacteria and fungi in media to boost their growth. It is use for sampling and transferring specimens or microorganisms into a media for further analysis, examination and serial dilution.

3 0
3 years ago
Earth's early atmosphere probably did not have ozone,so many _________ in the air and at the Earth's surface were broken apart.
DochEvi [55]
I think it the answer could be a "steamy mixture of carbon dioxide and water vapor". 
7 0
3 years ago
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