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Zielflug [23.3K]
3 years ago
14

Which term means blue discoloration of the skin caused by a lack of adequate oxygen?

Biology
1 answer:
vitfil [10]3 years ago
7 0
The term for blue skin caused by lack of oxygen is cyanosis. One is said to be cyanotic when presenting with this discoloration.
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Amoebae move by crawling over a surface (pseudopodia), which involves _____. A) growth of actin filaments to form bulges in the
KIM [24]

Answer:

the answer is: A) growth of actin filaments to form bulges in the plasma membrane.

Explanation:

Amoebas are unicellular organism that can move on a surface using pseudopodia (false feet). This kind of movement is called amoeboid movement. The amoeboid movement is explained by the Sol-gel theory.  The protoplasm of the amoeba is made of an outer gelatinous layer, and an inner portion made up of plasma sol. The sol-gel theory explains the contraction and relaxation events in the protoplasm of the amoeba that lead to the pseudopodia.

3 0
3 years ago
In which way are plants and animals different in how they use energy
saul85 [17]

Answer:

Is it multiple choice?

Explanation:

7 0
3 years ago
Rock is a type of Earth material. Most rock is made up of _______.
Alexxandr [17]

<em>Answer:</em>

<em></em>

<em>Rock is a type of Earth material. Most rock is made up of </em><em><u>minerals.</u></em>

<em><u></u></em>

<em>Hope this helps you</em>

8 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
This food web represents a community along the coast of Alaska.
jeyben [28]

Answer:

Oh wow thats cool...... you can just look it up on the internet. There are the most amazing tricks and things on there.

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