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geniusboy [140]
3 years ago
10

A unique species of snail has been discovered in the Negev Desert. At night, these snails use a toothlike rasping organ in their

head to scrape up porous limestone; they then digest the algae that lived in the rock pores. This scraping organ is the:
Biology
1 answer:
rjkz [21]3 years ago
7 0

Answer:

Radula

Explanation:

Radula is a structure found in mollusks which is used for the purpose of feeding and it is often considered to be like a tongue. It has minute teeth and chitinous in nature so mainly used for scraping and cutting of the food particles.

It has been also said in the question that the new species is snail that means it belongs to the phylum mollusca. And in the organisms of the phylum mollusca, Radula serves as the rasping organ.

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Answer:

A. 14.59

Explanation:

Firstly, rounding a number means making a number simpler but keeping its value close. So rounding 14.587020 means making it look less complex but making sure the rounded value is within range of the original value.

Next, we have to know that to round a number;

* Digits below 5 (<5) rounds down the next digit to their left i.e. we leave the digits the same and turn the rounding digit to 0.

* Digits above 5 (>5) rounds up the next digit to the left i.e. we add 1 to the next digit

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Hence, 14.587020 will be:

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We have four (4) digits which are non-zero already, hence we stop here and remove all zeros to the right

Hence, 14.587020 to 4 significant digits is 14.59 i.e. 14.587020 ~ 14.59

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