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adelina 88 [10]
3 years ago
6

Why are phylogenetic trees considered hypotheses?

Biology
1 answer:
ale4655 [162]3 years ago
7 0
They are considered hypotheses for a few reasons : Evolution of organisms has been occurring for hundreds of thousands of years.Since no one has actually been around that long to observe exactly what happened, phylogenetic trees are based off of 'clues' we have such as the fossil record and mutations in mitochondrial DNA. Therefore the 'proof' we use to make phylogenetic trees is not necessarily solid 'proof' but is instead facts put together through strong correlations.
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The language spoken by soldiers stationed throughout the roman empire was known as
Vesnalui [34]

The question is incomplete as it does not have the options which are:

A) Vulgar Latin.

B) Catalan.

C) a Romance language.

D) a standard language.

E) a dialect of Latin

Answer:

The correct answer will be option-A

Explanation:

The language used by the Romans was the Greek and the Latin. Latin was the language which is considered the language of Romans as it was used for the official work, legislation, administration and military persons.

The language used by the Military person is known as common Latin or common speech or Vulgar Latin which was spoken during the Roman empire.

Thus, option-A is the correct answer.

8 0
3 years ago
Define the following terms and give examples. Organelles, Cytoskeleton, Prokaryotic, Plasmalemma.
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Organelle: a membrane-bound structure in a cell that’s provides a specific function. Examples: mitochondria, chloroplast, nucleus

Cytoskeleton: microfibers found in the cytoplasm of a cell that’s provides shape and structure. Examples: tubules, filaments

Prokaryotic: a cell that lacks a nucleus, simple flagella are described as prokaryotic. Examples: Bacteria and Archaea

Plasmalemma: also called plasma membrane, protects the cell from its surroundings and regulates molecules that travels in and out of cells through channels. Example: plasma membrane, phospholipid bilayer

6 0
3 years ago
A cell that has two of every kind of chromosome is
deff fn [24]

Answer:

B. diploid

Explanation:

6 0
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What is common to all cells?
vovangra [49]

Answer:

a plasma membrane: an outer covering that separates the cell's interior from its surrounding environment.

cytoplasm: a jelly-like cytosol within the cell in which other cellular components are found.

DNA: the genetic material of the cell.

ribosomes: where protein synthesis occurs.

Explanation:

7 0
3 years ago
Read 2 more answers
Name the process in which a cell develops new sub-cellular structures to let it perform a specific function:
gtnhenbr [62]

Answer:

Explanation:

In the process of differentiation the stem cells develop different sub-cellular structures to turn into the different types of cells - specialisation. The specialised cells can now carry out their important specific functions - essential for the efficient and healthy viability of any organism.

8 0
3 years ago
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