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aksik [14]
3 years ago
8

Which of these statements is not true of the phylogenetic tree?

Biology
1 answer:
ivann1987 [24]3 years ago
3 0

Answer:

The answer is A.

Explanation:

Phylogenetic trees are only concerned with hard data (time points of when species evolve) and not soft data like how great a species is.

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Time on earth is divided into 6 eras. Three are considered "Precambrian" Which eras are NOT Precambrian?
bulgar [2K]

Explanation:

<u>the  Paleozoic Era </u>

The Precambrian era describes a period of time that pre-dates Cambrian. This time typically references the entire period of the history of earth before the formation of rocks containing identifiable fossils occurred. It covers the majority of Earth’s history and is divided into the Hadean, Archean and the Proterozoic era.

Just before the Cambrian eruption, in the  Paleozoic Era the environment was oxygenated, culminating in an explosion of new life in the Proteozoic Eon (2500-541 million years ago) in the form of primitive blue-green algae named cyanobacteria and oxygen based species. Multicellular species followed later, along with structure at higher levels, and complex life. Oxygen levels grew gradually over this period of time, from low levels.

Learn more about cellular life at brainly.com/question/11259903

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8 0
3 years ago
How does oxygen move from the respiratory system to the circulatory
slamgirl [31]

Answer:

D. By diffusion across a capillary wall

Explanation:

D is the best answer because gas exchange takes place in our lungs. Our lungs have alveoli which have a network of tiny blood vessels called capillaries, here the O2 diffuses the capillary wall to enter the bloodstream, and similarly CO2 diffuses out and we exhale it our from our lungs.

8 0
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The process in which the ovaries release one mature egg each month is called
jenyasd209 [6]
The process is called ovulation
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Kia studies rock formations all over the world. She is working on a study of
Sati [7]

Answer: A B A B A A

Explanation: YES

4 0
2 years ago
How is translation initiated? see concept 17.4 ( page 350) hints how is translation initiated? see concept 17.4 ( page 350) the
kondor19780726 [428]

The translation is initiated as the small ribosomal subunit muddles to the mRNA. Then the tRNA having the methionine binds to the start codon, and the large ribosomal subunit binds to the insignificant one. Finally, t<span>he start codon indicates the start of translation.</span>

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3 years ago
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