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Alona [7]
3 years ago
5

How was bipedal locomotion important to hominin evolution?

Biology
1 answer:
WITCHER [35]3 years ago
3 0

Answer:

Bipedalism freed the hands so they could be used to cart food,  make and use weapons and other advantages of freed hands.  Bipedalism is a much more efficient way to walk and run and this  fact is quantified.  Bipedalism raised the early proto-human above the horizontal so  he could see predators approaching.  Bipedalism is a much more efficient design to cool down  overheating bodies.

your welcome :)

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3 diferencias y 2 semejanzas entre la esterilización y pasteurización.
nlexa [21]

Answer:

<u>Las 2 semejanzas son</u>...

que son tecnicas de conservacion de los alimentos usando calor

teienen el fin de destruir patogenos y sus esporas

<u>Las 3 diferencias son...</u>

En la pasteurizacion se calienta un alimento a 72ºC de 15 a 20 segundos

En la esterilizacion se calienta a temperaturas superiores a 100ºC por mas tiempo

En la esterilizacion son comidas mas diversas como carnes, pescados, etc...

8 0
3 years ago
Match the following.1.a sequence of sugars, phosphates, and nitrogenous organic basesnucleic acid2.a complex molecule containing
ki77a [65]

Answer:

1.a sequence of sugars, phosphates, and nitrogenous organic bases: Nucleic acid

2.a complex molecule containing the genetic code: DNA

3.a nucleic acid that participates in the synthesis of proteins: RNA

Explanation:

Nucleic acids are the biomolecules that are composed of a sequence of nucleotides. Each nucleotide has a pentose sugar, a nitrogenous base, and a phosphate group. There are two types of nucleic acid called DNA and RNA. DNA differs from RNA with respect to the pentose sugar and the presence of a thymine base. The sequence of the template DNA strand serves as a genetic code.

It is copied into the nucleotide sequence of mRNA during the process of transcription. The molecules of mRNA serve as a template for the synthesis of proteins when their nucleotide sequence is read in the form of genetic triplets.

4 0
3 years ago
A 30-year-old woman tells the nurse that she has been very unsteady and has had difficulty in maintaining her balance. which are
sveticcg [70]
The area of  the brain  that   the  nurse  would  be  concerned  about when finding  to  a  woman  who  explain  that  she  has been  very  unsteady  and  has  difficulty  in  maintaining  balance  is  cerebellum. Cerebellum  is  responsible  in coordinate   voluntary  movement
6 0
3 years ago
If the gametes are produced by a female what are they called
inessss [21]

Answer: Gamete.

Explanation: They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome. These reproductive cells are produced through a type of cell division called meiosis.

5 0
3 years ago
g Select true statements about three‑dimensional protein structures and their evolutionary relationships. Every species has only
vesna_86 [32]

Answer:

Every species has only unique proteins. FALSE

Determining sequence homology is an important tool for predicting protein structure and function. TRUE

Protein function is directly related to the protein's tertiary structure. TRUE

Protein function can be predicted from amino acid sequence. TRUE

The tertiary structure of a protein is more highly conserved than the primary structure. TRUE

Explanation:

Every species has only unique proteins. FALSE

There are homolog proteins among species, that share ancestry. It can be for a speciaton events, and this are called orthologs, or due a gene duplication event, and this are called paralogs.  

Determining sequence homology is an important tool for predicting protein structure and function. TRUE

Sequence homology of an unknown protein can be useful since the primary structure can be used for modeling the protein structure, and also this information can be compared with databases of proteins of known function and retrieve predictive information about this protein function. Proteins with similar amino acid sequence usually do similar biochemical functions.

Protein function is directly related to the protein's tertiary structure. TRUE

In most cases, structure dictates the biochemical function of the protein. Protein functions are as diverse as protein structures.

Protein function can be predicted from amino acid sequence. TRUE

The primary structure (sequence of aminoacids) can lead to the elucidation of the secondary and tertiary structure of the proteins, since the sequence of the residues, and the nature of them (hydrophobic, aromatic, hydrophilic, basic, etc). This will shape the tridimensional form of the protein.

The tertiary structure of a protein is more highly conserved than the primary structure. TRUE

There can be changes in the amino acid sequences, but if they are amino acids of the same family, they will interact similar and maintain the tertiary structure with minimum changes.  

3 0
3 years ago
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