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slavikrds [6]
3 years ago
13

Why might a unicellular organism need oxygen?

Biology
1 answer:
Ahat [919]3 years ago
5 0

Answer:

Most organisms also need oxygen to survive. ... In unicellular organisms, oxygen diffuses across the cell membrane into the cell. Carbon dioxide diffuses out of the cell once the concentration of carbon dioxide is higher inside the cell than it is outside of the cell.

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Select all that apply. Select the animal characteristics. segmented or nonsegmented presence or absence of connective tissue gre
nadya68 [22]
<span>Segmented or Non Segmented,
 Teeth Patterns,
 Exoskeleton or Endoskeleton,
Digestive System, And Locomotion.

These are the only characteristics of an Animal, the other's deal with plant structures.</span>
8 0
3 years ago
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Which is not part of the cell theory? Question 3 options: All known living things are made up of one or more cells All matter is
inysia [295]

Answer:

all cells comes from pre - existing cells

Explanation:

because cell comes are made up from living things

5 0
2 years ago
Cuales son los elementos de la biodiversidad ???
ollegr [7]

Tres elementos de la biodiversidad. La diversidad de espacios incluye los ecosistemas como núcleo central. Éstos son conjuntos dinámicos de plantas, hongos, animales, microorganismos y el medio físico que los rodea, interactuando como una unidad funcional; por eso se les denomina «ecosistemas».

3 0
3 years ago
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Which reproductive isolating mechanism is most likely responsible for the divergence of bonobos and chimpanzees?
olga nikolaevna [1]
The reproductive isolating mechanism most likely responsible for the divergence of bonobos and chimpanzees is ECOLOGICAL ISOLATION.
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7 0
3 years ago
PLEASE HELP I NEED THIS ASAP! Explain the process of translating mRNA into polypeptide sequences. Use the terms mRNA, amino acid
kenny6666 [7]

Answer:

Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid (hence, it is a triplet code). The mRNA sequence is thus used as a template to assemble—in order—the chain of amino acids that form a protein.

Explanation:

The genes in DNA encode protein molecules, which are the "workhorses" of the cell, carrying out all the functions necessary for life. For example, enzymes, including those that metabolize nutrients and synthesize new cellular constituents, as well as DNA polymerases and other enzymes that make copies of DNA during cell division, are all proteins.

In the simplest sense, expressing a gene means manufacturing its corresponding protein, and this multilayered process has two major steps. In the first step, the information in DNA is transferred to a messenger RNA (mRNA) molecule by way of a process called transcription. During transcription, the DNA of a gene serves as a template for complementary base-pairing, and an enzyme called RNA polymerase II catalyzes the formation of a pre-mRNA molecule, which is then processed to form mature mRNA (Figure 1). The resulting mRNA is a single-stranded copy of the gene, which next must be translated into a protein molecule.

3 0
2 years ago
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