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Zepler [3.9K]
3 years ago
12

So it’s been a while since I have done anything like this and I need help

Biology
1 answer:
timama [110]3 years ago
7 0

Answer:

A - the four cells have identical DNA sequences.

Explanation:

Essentially all cells in a multicellular organism have exactly the same DNA sequence.

The reason the cells look different is because different genes are active in different cells - which gives them their unique shapes, structures and activities!

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Why can you not prove a hypothesis
ss7ja [257]

Answer:

To conclude, you cannot prove a hypothesis because you can never generalise the results to the whole population and foresee the results will always be the same in the future. You can however, reject the null hypothesis consistently, through statistical hypothesis testing so that the theory becomes highly likely to be true, but not proven.

Explanation:

5 0
3 years ago
The process in which brain connections which are repeated become covered and insulated with a layer of fat increasing the effici
fiasKO [112]

Answer:

Myelination

Explanation:

Myelin is a fatty substance composed of lipids which surrounds the axons of the nerve cells in the central nervous system. The myelin is formed by the oligodendrocytes in CNS and Schwann cells in PNS.

The plasma membrane of the oligodendrocytes containing the myelin covers the axons of the neurons in spiral fashion thus proving a sheath around through the process called "myelination".

This myelin sheath protects the neurons from the external environment as well as insulates the neuron which increases the efficiency of the impulse.

Thus, Myelination is the correct answer.

6 0
3 years ago
_______ fungi are those species that occur as either molds or yeast, depending on environmental conditions such as temperature a
Tasya [4]

Dimorphic fungi are those species that occur as either molds or yeast, depending on environmental conditions such as temperature and nutrient availability.

Dimorphic fungi are fungi that can exist in the form of both mold and yeast. This is usually brought about by change in temperature and the fungi are also described as thermally dimorphic fungi. An example is Talaromyces marneffei, a human pathogen that grows as a mold at room temperature, and as a yeast at human body temperature.

The term dimorphic is commonly used for fungi that can grow both as yeast and filamentous cells, however many of these dimorphic fungi actually can grow in more than these two forms. Dimorphic is thus often used as a general reference for fungi being able to switch between yeast and filamentous cells, but not necessary limiting more shapes.

Some diseases caused by this fungi are:

  • sporotrichosis
  • blastomycosis
  • histoplasmosis
  • coccidioidomycosis
  • paracoccidioidomycosis
  • talaromycosis
  • candidiasis

Several species of dimorphic fungi are important pathogens of humans and other animals which  includes :

  • Coccidioides immitis
  • Paracoccidioides brasiliensis
  • Candida albicans
  • Blastomyces dermatitidis
  • Histoplasma capsulatum
  • Sporothrix schenckii

Learn more about Dimorphic fungi here : brainly.com/question/13051247

#SPJ4

6 0
1 year ago
RNA differs from DNA in that RNA has
Komok [63]
Dna is double stranded
rna is single stranded

sugar in dna is deoxyribose
sugar in rna is ribose

nitrogenous bases in dna are adenine thymine guanine and cytosine whereas rna has uracil instead of cytosine

dna stays in the nucleus
rna leaves the nucleus

7 0
3 years ago
Read 2 more answers
What are 2 Body systems used when smelling a flower? Explain each of them.
Doss [256]

Answer:

your noes and lungs

Explanation:

your lungs help you breath and the smell goes through your noes

8 0
3 years ago
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