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Vlad [161]
1 year ago
12

Which of the following provided structural evidence for the concept of a common ancestor

Biology
1 answer:
nikdorinn [45]1 year ago
8 0

Physical characteristic was present in a common ancestor, species may have similar physical characteristics (homologous structures).

<h3>What are homologous structures?</h3>

A physical trait that distinguishes two or more species, such as a complicated bone structure or a body plan, may have been passed down from a common ancestor.

A common ancestor's evolutionary history causes physical characteristics to be homologous.

Sometimes, structures in an organism are similar to crucial structures in other animals, but they no longer serve the primary ancestral role. Vestigial structures are these structures, which are frequently scaled down.

Therefore, Physical characteristic was present in a common ancestor, species may have similar physical characteristics (homologous structures).

To learn more about homologous organs , refer to the link:

brainly.com/question/14963404

#SPJ1

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Which of the following characteristics do not belong to the lumbar region?
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Answer:

Explained below.

Explanation:

Each lumbar region of the spine is generally remembered as the lower back which contains 5 vertebrae. And the lumbar region is located between the chest or thoracic. And lumbar spine also typically holds a small internal curve as well.

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* Blunt spinous process

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Answer:

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Explanation:

Bacteria are prokaryotic organisms, i.e., unicellular organisms that do not have a cell nucleus nor any membrane-bound organelles . Generally, the genetic material is composed of a single DNA circular molecule (bacterial chromosome), which is localized in a specific region of the cytoplasm (nucleoid region). Prokaryotic cells are usually smaller than eukaryotic cells (0.1 - 5 μm in size). In bacteria, metabolic functions (i.e., growth and reproduction) occur in the cytoplasm. The most important process of reproduction in bacteria is binary fission, a form of asexual reproduction where a single bacterial cell divides into two. Bacteria can also exchange genetic material by sexual reproduction mechanisms (i.e., conjugation, transformation and transduction). The main strategy to prevent outbreaks caused by bacteria is to know the conditions where they grow and reproduce. For example, <em>Salmonella</em> is a genus of infectious bacteria that may cause an outbreak. <em>Salmonella</em> infection may be prevented by eliminating conditions where they can multiply. Measures to prevent <em>Salmonella</em> outbreaks include cook food thoroughly (do not eat raw eggs or raw beef), refrigerate foods, wash hands, etc.

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Hi


The answer is : Somatic

Because somatic relating to the body


I hope that's help:-


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