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VikaD [51]
3 years ago
6

What species concepts is not very useful in defining plant species because some plant groups readily hybridize with other plant

groups?
Biology
1 answer:
matrenka [14]3 years ago
3 0

Answer:

The <u>biological species concept</u> is not very useful in defining plant species.

Explanation:

The biological species concept says that <em>species are population groups that, in a real or potential way, can reproduce and that </em><em>are reproductively isolated from other groups.</em>

<em>Individuals belonging to a species cannot reproduce with members of other species. </em>

This biological concept has limitations. Its application might present difficulties in concern with asexual reproduction species, such as bacteria, rotifer, cnidarians, plants, and etcetera.

Besides, this concept cannot be applied to the past because it is difficult to deduce reproductive capability between extinct species.

Finally, this concept is not adequate in concern to hybridization zones, something to be expected considering evolutionary processes. This is why this concept has been less accepted by botanists, as some plant species hybridize with other species. For example, species Quercus grisea and Quercus gambelii have overlapping ranges in the southwestern United States. Hybrids showing variation in leaf shape and other traits have been found in many places in this area.

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What species of the genus homo was the first to have bigger brains and limb proportions similar to modern humans, to use fire, a
Ket [755]

The extinct ancient human Homo erectus is a species of firsts. It was the first of our relatives to have human-like body proportions, with shorter arms and longer legs relative to its torso.

<h3>What are Homo erectus?</h3>

Homo erectus, an extinct species of Pleistocene archaic human, first appeared about 2 million years ago. Several human species, including H. heidelbergensis and H. antecessor, seem to have diverged from H. erectus, with the former being largely accepted as the ancestor of Neanderthals, Denisovans, and modern humans. Among the first recognizable representatives of the genus Homo are its specimens. The first known ancestor of modern humans, H. erectus, had a continental range that stretched from the Iberian Peninsula to Java. H. floresiensis and possibly H. luzonensis may have its origins in Asian populations of Homo erectus. H. erectus soloensis, from Java, dates to a time period between 117,000 and 108,000 years ago.

To learn more about Homo erectus from the given link:

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8 0
1 year ago
What is the name of the processes that change the genetic information into each new form?
dusya [7]

I think the answer is evolution.

7 0
3 years ago
Research this week will be done over the Respiratory system
Hitman42 [59]

Answer:

pharynx, larynx, trachea, bronchi and lungs

The respiratory system is what allows us to breathe and exchange carbon dioxide for oxygen. The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide. ... The lungs work with the circulatory system to pump oxygen-rich blood to all cells in the body.

The respiratory system does not work alone in transporting oxygen through the body. The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.

Explanation:

8 0
2 years ago
Keystone predators can maintain species diversity in a community if they _________. A. competitively exclude other predators B.
Alisiya [41]

Keystone predators can maintain species diversity in a community if they  prey on the community's dominant species

Option B is correct.

What is meant by keystone predator?

A keystone species is usually a dominant predator whose removal allows a prey population to explode and often decreases overall diversity. other forms of keystone species are those, like coral or beavers, that significantly alter the habitat around them and thus affect large numbers of other organisms.

Are keystone species always predators?

A keystone species is usually , but not always, a predator. Just some predators can control the distribution and population of large numbers of prey species. the whole concept of keystone species was founded on research surrounding the influence of a marine predator on its environment.

Learn more about keystone predators:

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8 0
1 year ago
You are working with a mixed population of cells that includes some cells expressing CD95 on their surfaces. Design an experimen
Julli [10]

Answer:

Fluorescence-Activated Cell Sorting or FACS is a method that allows us to sort out different cell types on the basis of fluorescence emitted by cell membrane components bound compounds.

In the case of CD95 integral protein which is known for highly glycosylated, if use antibodies against cells with CD95 marker, will not identify glycans and can’t be targeted by antibodies as antibodies only recognize protein structures.

Therefore, two different proteins should be used in order to get the correct sorting of cells. One of these would bind to these glycosylations, and the other would be antibodies (with a fluorescent tag) against first.

3 0
2 years ago
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