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densk [106]
3 years ago
11

How many elements have currently been discovered​

Biology
2 answers:
Alex3 years ago
6 0

Answer:

115

Explanation:

kobusy [5.1K]3 years ago
3 0

<em>Elements 1 to 112, Hydrogen to Ununbium are known, with Ununbium only been discovered in 1996. Elements 114, 116 and 118 have also been discovered more recently, bringing the total to </em><em>115</em><em> known elements. Note that Elements 113,</em><em>115 </em><em>and 117 have not yet been discovered</em>

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What is the importance of manipulation and control in the experimental method?
Vitek1552 [10]
This is an experiment where the researcher manipulates one variable, and control/randomizes the rest of the variables. It has a control group, the subjects have been randomly assigned between the groups, and the researcher only tests one effect at a time.
6 0
2 years ago
Photosynthesis and cellular respiration are considered complementary processes because
Sergio [31]

Answer:

O Glucose is produced in one process and used in another.

6 0
2 years ago
I need help on this.​
Zanzabum

**see attached pic**

8 0
2 years ago
What type of genetic disorder is leber hereditary optic neuropathy
ivanzaharov [21]

Answer:

Mitochondrial Disorder

Explanation:

The LHON stands for leber hereditary optic neuropathy is a type of mitochondrial disorder. The disorder is generally observed in young males. The mitochondrial disorder are transferred from mother to its progeny. The disorder causes retinal ganglion cells (RGCs) and the exons of RGCs to degenerate. The disorder causes sudden painless failure of vision. The disorder leads to loss of central vision, optic atropy and central scotoma.

The most of the individuals with LHON do not possess the signs of the disorder. The disorder is caused by mutation in maternal DNA, thus it is a type of mitochondrial disorder.

7 0
2 years ago
Why does frozen water take on the pattern it does (hint: it has to do with water’s polarity)?
damaskus [11]

When ice forms, one water molecule's hydrogen atoms form weak hydrogen bonds with the tops of the oxygen atoms of two other water molecules. Lining up the water molecules in this pattern takes up more space than randomly arranging them.

<h3>What is polarity?</h3>

A physical property of compounds that connects other physical properties like melting and boiling points, solubility, and intermolecular interactions between molecules is referred to as polarity.

When ice forms, one water molecule's hydrogen atoms form weak hydrogen bonds with the tops of the oxygen atoms of two other water molecules.

Lining up the water molecules in this pattern takes up more space than randomly arranging them.

When water freezes, the water molecules slow down enough that their attractions arrange them into fixed positions. Water molecules freeze in a hexagonal pattern, with molecules further apart than when the water was liquid.

Thus, because of this frozen water take on the pattern it does.

For more details regarding polarity, visit:

brainly.com/question/2615067

#SPJ1

4 0
1 year ago
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