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olchik [2.2K]
2 years ago
10

According to this evolutionary tree, the archaea and eukaryotes last shared a common ancestor ________.

Biology
2 answers:
Lostsunrise [7]2 years ago
5 0

Answer:

2.5 billion years ago.

Explanation:

Evolutionary tree is constructed to understand the phylogeny and evolution relationship of the organism. The evolutionary tree is constructed by looking at the molecular and physiology of the different organisms.

The eukaryotes are more closely related to the archaea. Depending on the biochamical and molecular evidence is has been found that they share the common ancestor almost 2.5 billion years ago. This can also be deduced by the fossil evidence as well.

Thus, the answer is 2.5 billion years ago.  

ki77a [65]2 years ago
3 0

Answer:

The correct answer is - 2.5 billion years ago.

Explanation:

The life on the earth has evolved with 3 different lineage namely Bacteria, Eukarya, and Archaea. However the 2 are prokaryotic groups of microbes that lack membrane bound organelles and nuclei.

Recent studies suggested that these two domain, Eukarya and the Arcahea are more close than the bacteria domain. These two domains are shared the common ancestor that probably existed 2.5 billion years ago.

Thus, the correct answer is - 2.5 billion years ago.

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Describe how energy and matter flow, interact and change forms throughout the<br> Earth system
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Read 2 more answers
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Karo-lina-s [1.5K]

Answer:

Autotrophs are organisms that use light energy or energy stored in chemical compounds to make their own food.

1st order heterotrophs are organisms that eat only plants

2nd order heterotrophs are organisms that eat herbivores

3rd order heterotrophs: organisms that eat herbivores and other carnivores

Top group: carnivores

Explanation:

Producers are named as such because they produce their own food either by photosynthesis or chemosynthesis. These organisms are called autotrophs and include plants.

There are various levels of consumers. The first is first order heterotrophs, which feed on the producers. These are herbivores and include, for example, a deer feeding on grass.

The next is second order heterotrophs, which feed on the first order heterotrophs. E.g. an owl eating a mouse. These are carnivores

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