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dlinn [17]
3 years ago
13

Which contributes to Earth's ability to sustain life?

Biology
1 answer:
xeze [42]3 years ago
3 0

Answer:

D

Explanation:

This is because the atmosphere is refreshable and makes breathing so conducive.

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Questions are in the picture answer both plsss
vovangra [49]

Answer:

13. is Option J) all of the above

and 14 I'm not completely sure but I think its option D.

7 0
3 years ago
Buccal means: A) Pertaining to the cheek. B) Pertaining to the soft palate. C) Pertaining to the tongue. D) Pertaining to the te
krok68 [10]
A) pertaining to the cheek
7 0
3 years ago
5. Which of the following levels is the most inclusive, largest, and least specific of the choices? A. Family B. Phylum C. Speci
Ierofanga [76]
First we can look at the taxonomic order:

Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species

The largest level would be the one closest to the top of the list because it is the least specific and therefore the most inclusive. Out of the choices given, phylum is closest to the top, so that is the answer.
4 0
3 years ago
In sickle-cell disease, as a result of a single amino acid change, the hemoglobin tetramers associate with each other and assemb
Phoenix [80]

Answer:

One of the common genetic disorders is sickle cell anemia, in which 2 recessive alleles must meet to allow for destruction and alteration in the morphology of red blood cells. This usually leads to loss of proper binding of oxygen to hemoglobin and curved, sickle-shaped erythrocytes. The mutation causing this disease occurs in the 6th codon of the HBB gene encoding the hemoglobin subunit β (β-globin), a protein, serving as an integral part of the adult hemoglobin A (HbA), which is a heterotetramer of 2 α chains and 2 β chains that is responsible for binding to the oxygen in the blood. This mutation changes a charged glutamic acid to a hydrophobic valine residue and disrupts the tertiary structure and stability of the hemoglobin molecule. Since in the field of protein intrinsic disorder, charged and polar residues are typically considered as disorder promoting, in opposite to the order-promoting non-polar hydrophobic residues, in this study we attempted to answer a question if intrinsic disorder might have a role in the pathogenesis of sickle cell anemia. To this end, several disorder predictors were utilized to evaluate the presence of intrinsically disordered regions in all subunits of human hemoglobin: α, β, δ, ε, ζ, γ1, and γ2. Then, structural analysis was completed by using the SWISS-MODEL Repository to visualize the outputs of the disorder predictors. Finally, Uniprot STRING and D2P2 were used to determine biochemical interactome and protein partners for each hemoglobin subunit along with analyzing their posttranslational modifications. All these properties were used to determine any differences between the 6 different types of subunits of hemoglobin and to correlate the mutation leading to sickle cell anemia with intrinsic disorder propensity.

Explanation:

7 0
3 years ago
Please help me with these!
romanna [79]
12.  D

13. B

14 . C


I hope I helped you. I don't know if I was helpful.
5 0
3 years ago
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