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Viktor [21]
2 years ago
15

Bones fitted together in the shape of a _____ a0 give the human body structure.

Biology
2 answers:
ElenaW [278]2 years ago
8 0

The answer is skeleton.

Please correct me if I'm wrong!! :)

Harrizon [31]2 years ago
5 0

Answer: Skeleton

Explanation:

Human skeleton is the internal framework of the human body. It consists of around 206 bones that are well organized to provide support to the body.

Actually there are 270 bones at the time of birth but it decreases to 206 bones till we reach our adulthood.

Human skeleton is divided into axial and appendicular skeleton. the skeleton provides support, movement, storage of minerals et cetera.

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The Baltic Sea has very low dissolved oxygen content. What kind of condition prevails in this sea?
bonufazy [111]

The answer is; Dead Zone

These areas have anoxic condition means they have very little to zero dissolved oxygen hence cannot support marine/aquatic life. This is as a result of eutrophication  caused by algae blooms. This phenomenon is brought about by pollution of these water reservoirs. These algae bloom take up all the oxygen in the water during their mass decomposgion hence leave no dissolved oxygen for the rest of the marine life.


4 0
3 years ago
Read 2 more answers
Mutations in ubiquitin lead to malfunction of what organelle in ALS that leads to buildup of mis-folded proteins?
sergiy2304 [10]

Answer:

Mitochondria.

Explanation:

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder in which the neuron died due to mutation in superoxide dismutase 1 gene. This disease is also known as Lou Gehrig's disease.

Mitochondria structure is disorganized in ALS. The ubiquitin protein mutation leads to the malfunctioning of mitochondria and misfolded proteins are made in the mitochondria.

Thus, the correct answer is option (a).

8 0
3 years ago
If the frequency of a dominant allele in a population in equilibrium is 0.35, then the frequency of the corresponding recessive
Nadusha1986 [10]

Answer:0.8775

Explanation:formula for gene frequency is p+q=1

where p is the dominant allele and q is the recess allele.

Given than p=0.35

P^2=0.35^2=0.1225

q=1-p

q=1-0.1225=0.8775

Answer is 0.8775

3 0
3 years ago
What are two characteristics of a scientific information source that may indicate the information is unreliable?
Ksivusya [100]

Scientific information refers to the classification, collection, dissemination, and retrieval of recorded knowledge treated both as a pure and as an applied science. The two features of a scientific information source, which may suggest that the information is not reliable are:  

1. The information is based on data that are not peer-reviewed, that is, the information has not been reviewed by the experts in the field, or is not encouraged by an accord of experts in the field.  

2. The references are not cited, that is, it not clear or not known that from where the information originated.  


4 0
3 years ago
When DNA is compacted by histones into 10-nm and 30-nm fibers, the DNA is unable to interact with proteins required for gene exp
poizon [28]

Answer:

This is through the process of methylation and phosphorylation of histones tails.

Explanation:

The addition of   a methyl group  to the amino acid of the histones of the  nucleosomes   that compacted DNA  in the nucleus is  called mehtylation, while the addtion of phodpahte is phosphorylation

Its  effects  on  gene expression depends on the number of <u> methyl groups, and type of amino acid that  methylated. During transcription. </u>

<u />

The DNA double strands are compacted and therefore  hidden  from transcription factors and enzymes of transcription by the hitones  tails of the neuclosomes, Methylation  weaken the binding bonds between the tails and DNA structure ; thereby aiding the uncoiling of DNA  from the  tails.(nucleosomes).This chemical  reaction  aided  DNA  strands  exposure   to transcription factors and enzymes, for initiation of transcription. This explains the dyanmic activity of methylation

Futhermore phophorylation also favours unwrapping of DNA, by imitating   modifying enzymes e.g H3Y41E and H3T45E  and convert it to→→ H3Y41phopspahte to aid DNA unwrapping and accessibility to  transcription factors and RNA polymerase Enzymes,

5 0
3 years ago
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