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Semmy [17]
3 years ago
13

Friction in machines is commonly reduced by using

Biology
2 answers:
avanturin [10]3 years ago
5 0
By  ball bearing, lubrication, polishing, adding grease etc
zzz [600]3 years ago
5 0
Friction is typically reduced by applying an oil or grease to the afflicted joint.
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In what part of the body does the most muscle activity happen?
Gre4nikov [31]

heart




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5 0
3 years ago
The end products of cellular respiration are CO2 and H2O. Where do the oxygen atoms in CO2 originate? Where does the oxygen atom
oee [108]

Answer:

The oxygen atoms of CO2 originated from glucose and the oxygen atom of H2O is originated from normal oxygen molecule that act as reactant during the break down of glucose by oxidation.

Explanation:

C6H12O6+6O2=6CO2+6H2O+Energy

In the above reaction glucose is being reduced to generate CO2 .As a result the oxygen of CO2 is originated from glucose.

   The above also deals with the reduction of oxygen to H2O.From that point of view it can be stated that the oxygen atom of H2O originates from molecular oxygen that act as reactant.

6 0
3 years ago
Which statement describes the offspring of the F1 generation when crossing a pea plant that is true breeding for green seeds wit
denpristay [2]
Answer;
B. The offsprings will inherit one gene from each parent.

Explanation; 
F1 (first filial) generation are the offsprings from the cross between the parents. In this case from Yellow seeds (YY) and green seeds (yy); the yellow seeds are dominant over the green seeds. 
After crossing; each F1 generation will contain a genotype, Yy,-heterozygous, which means the phenotype will be yellow seeds since it is dominant over the green seeds. Each offsprings is formed by obtaining one allele from each parent; that is Y allele from yellow seed and y from the green seed.
7 0
3 years ago
Read 2 more answers
Plants get nitrogen from _____.<br> the air<br> water<br> the soil
chubhunter [2.5K]

<span>the soil</span>

The nitrogen used by most plants is derived from soil.

Nitrogen is an important element. It is needed by organisms to produce amino acids 

Nitrogen is made usable for plants by bacteria which change nitrogen to  ammonium.

Ammonium  gets changed to nitrates by bacteria in a process called nitrification, which takes place in soil.

Nitrates is the form that plants can absorb. They absorb it through their roots and use it to make amino acids, nucleic acid and chlorophyll.

3 0
4 years ago
The white, cheesy-looking substance that is produced by the sebaceous glands and protects a baby's skin while it is floating in
Temka [501]

Answer:

The correct answer is - vernix caseosa.

Explanation:

Vernix caseosa is white, cheese-like appearing substances that form naturally and rich in a lipid that covers and protects the skin of baby. It is produced by the sebaceous glands.

It also provides protection to a neonatal after birth from infection as they contain anti-infection, anti-inflammatory properties with various antioxidants in it.

Thus, the correct answer is - Vernix caseosa.

5 0
3 years ago
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