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dimulka [17.4K]
3 years ago
14

There is still some controversy among biologists about whether Neanderthals should be placed within the same species as modern h

umans or into a separate species of their own. Most DNA sequence data analyzed so far indicate that there was probably little or no gene flow between Neanderthals and Homo sapiens. Which species concept is most applicable in this example?
Biology
1 answer:
Lyrx [107]3 years ago
7 0

Answer:

It is the biological concept of species  

Explanation:

In 1970 Mayr stated that "species are formed by groups of potentially intercrossing populations that are reproductively isolated from others". The biological concept of species puts emphasis on existence of barriers that limit the gene flow among groups within the same species

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You are an experienced naturalist and biologist and you observe two birds mating that you do not believe are members of the same
Zepler [3.9K]

Answer:

B) Post-zygotic factors prevented successful reproduction.

Explanation:

Postzygotic factors may influence the formation of the fertile offspring.

The postzygotic barriers basically involves the formation of the hybrid organisms which do not survive past the embryonic stages i-e hybrid inviability / the hybrid creation that is unable to form the offspring i-e sterile.

So , in the given scenario option B )Post-zygotic factors prevented successful reproduction is the right answer .

7 0
3 years ago
In the diagram of the human digestive system, what organ is labelled 5?
il63 [147K]

Answer:

The large intestine

Explanation:

The large intestine is a long, tube-like organ connected to both the small intestine and the anus. In an anatomy drawing, it looks almost as if it is wrapped around the small intestine.

As we can see in the drawing, the organ labelled with 5 is wrapped around another organ which is smaller and looks longer. This smaller organ is the <em>small intestine</em>. Since we know that the large intestine <em>wraps around</em> the small intestine, we can infer that the organ is the large intestine.

Hopefully that was helpful! :)

8 0
2 years ago
Water________
VARVARA [1.3K]
Water boils at 100<span>°C</span>
8 0
3 years ago
The immune response is a dynamic process that initiates with an antigen-independent response, which becomes more focused and pow
prisoha [69]
<h2>False </h2>

Explanation:

The immune system develops integrated innate and adaptive modules that are pathogen type-specific and no single response can effectively control all types of pathogens

Both innate and adaptive immune system operate in cooperative and interdependent ways

Innate immune system is present since birth in an organism and is non specific in nature which means acts against all foreign antigens and molecules and provides first line of defense against pathogens

Adaptive immunity system is the acquired one which is capable of recognizing and selectively eliminating specific foreign antigens and is antigen specific which means can discriminate among different antigens; also has the ability to respond to various kinds of epitopes of pathogens

6 0
3 years ago
Question:
maksim [4K]

Explanation:

The non living things in its environment is called a " matrix,"

A matrix is what supports a non living thing to reproduce, triple its existence & reproduce in mass quantities, like soil bacteria, and others..

6 0
2 years ago
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