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Vladimir [108]
3 years ago
13

Wich make the pear troublesome?A. SclerenchymaB. CollenchymaC. Parenchyme​

Biology
2 answers:
Jlenok [28]3 years ago
4 0

Answer:

Sclerenchyma

Explanation:

Sclerenchyma is a simple, permanent tissue. It is the supporting tissue in plants, making the plants hard and stiff (like in the pear). Two types of sclerenchyma cells exist: fibres and sclereids.

ale4655 [162]3 years ago
3 0

Answer:

sclerenchyma is the answer

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What do you mean by mental labour​
zavuch27 [327]

Answer: Mental Labour, According to this definition, mental work refers to planning, organizing, coordinating, and managing duties and tasks that we perform during the course of our lives. People's worries about their ability to manage their time efficiently and effectively.

Explanation:

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5 0
3 years ago
The Celsius temperature scale is also something called the centigrade scale. Why is this?
valentinak56 [21]
There are three temperature scales in use today, Fahrenheit, Celsius and Kelvin.

Fahrenheit temperature scale is a scale based on 32 for the freezing point of water and 212 for the boiling point of water, the interval between the two being divided into 180 parts. The 18th-century German physicist Daniel Gabriel Fahrenheit originally took as the zero of his scale the temperature of an equal ice-salt mixture and selected the values of 30 and 90 for the freezing point of water and normal body temperature, respectively; these later were revised to 32 and 96, but the final scale required an adjustment to 98.6 for the latter value.

Until the 1970s the Fahrenheit temperature scale was in general common use in English-speaking countries; the Celsius, or centigrade, scale was employed in most other countries and for scientific purposes worldwide. Since that time, however, most English-speaking countries have officially adopted the Celsius scale. The conversion formula for a temperature that is expressed on the Celsius (C) scale to its Fahrenheit (F) representation is: F = 9/5C + 32.


Hope this helps.

4 0
3 years ago
A single ________ on the ________ chromosome plays a crucial role in the prenatal development of the testes.
Tju [1.3M]

Answer:

A single gene on the Y chromosome plays a crucial role in the parental development of the testes.

Explanation:

Y chromosome is present only in males and this chromosomes is the distinguishing factor which separates males from females. It is the smallest chromosome but of utmost importance due to its sex determining feature. Up till now, studies show that Y chromosomes only carry limited amount of genes.  

The Y chromosome, most importantly, comprises of the SRY gene. This is the gene responsible for determining the testis and for the development of the testis. The SRY gene is responsible for sex determination.

6 0
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luda_lava [24]

Answer:

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Explanation:

8 0
3 years ago
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kakasveta [241]

B oxygen is the product that is created

8 0
3 years ago
Read 2 more answers
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