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melisa1 [442]
3 years ago
12

The first eukaryotes were undoubtedly

Biology
2 answers:
Elza [17]3 years ago
5 0
B. Protistans, a group thought to have given rise to other eukaryotic cells
Alexxx [7]3 years ago
4 0

Answer: Protistans

Explanation: The first appeared eukaryotes were from the kingdom protista. This kingdom consists of many organism that includes both unicellular organism and multicellular organism.

The eukaryotic organism are more complex as compared to that of prokaryotes and they have specialized organelles for performing a variety of function necessary for the survival of the organism.

Example: The DNA of the eukaryotic organisms are packed in a membrane structure known as nucleus which is absent in the prokaryotes.

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Which of the following is not a protein made by the lac operon?
fiasKO [112]

Answer:

Lactase

Explanation:

Lac operon (lactose) is degraded to glucose and galactose by three enzymes :beta galactosidase, galactoside permease and thiogalactosidase transacetylase.

7 0
3 years ago
What do you mean by the chromatin fibres ?​
nika2105 [10]

Hey buddy I am here to help!

Chromatin fibers are coiled and condensed to form chromosomes. Chromatin makes it possible for a number of cell processes to occur including DNA replication, transcription, DNA repair, genetic recombination, and cell division.

Hope its helps!

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2 years ago
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Harvey takes the drug viagra. how does the drug help produce erections for harvey?​
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The answer to this question would be: B<span>. It relaxes blood vessels in Harvey’s penis, allowing them to expand. 
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8 0
3 years ago
Dorothy Peterson was diagnosed with breast cancer. She and her doctor agreed upon treating this surgically with a/an . This is a
mojhsa [17]

Answer: Lumpectomy

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3 0
2 years ago
How might an increase in the rate of photosynthesis affect the conditions necessary for cellular respiration?
shutvik [7]
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