Which relationship is an example of commensalim?

1 answer:

azamat3 years ago

8 0

One of the most poplar examples of commensalism is the relationship between cattle egrets and livestock. The cattle egret is a common species of heron that is found in most regions of the world, and is mostly seen moving along with herds of cattle. This bird moves about in pastures, and follows livestock such as cattle and horses.

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An owl and a bat share the same kingdom and phylum; an owl and a robin share the same kingdom, phylum, and class. Which of the f

neonofarm [45]

The correct answer is - b. The owl and the robin have more characteristics in common.

All three animals are in fact connected, but the connections are very different. While the owl and the robin are closely related, their connection with the bat can be traced few hundred million years ago. The owl and the robin are both birds, they share common ancestors in the early transitional species of bird-like dinosaurs, and before that their ancestors were part of the dinosaurs. The bat on the other hand, is a mammal, and has evolved from the primitive shrew like mammals that got an open space after the dinosaurs disappeared, and while living along side them were living in their shadow. So the bat's connection to the owl and the robin is going much further into the geologic past, before the diversification of the species to mammals and reptiles.

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4 years ago

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Metabotropic receptors exert their actions by: A. Stabilizing heterotrimeric G-proteins B. G-Beta/Gamma subunits acting as trans

son4ous [18]

Answer: Option C.

G - alpha subunits stimulating the production of second messenger

Explanation:

Metabotropic receptor is a type of receptor in the Eukaryotic cells that exerts it's action by producing a second messenger. They do not change channels but they exerts it effect by binding and stimulating G protein to produce a second messenger. They can either close or open channels in cell membrane. They are found at the surface of the cells or vessicles.

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3 years ago

Klio2033 [76]

Answer:

There are many similarities and differences between the two cultures.

Explanation:

Similarities are as follows: -

Anti-regime movements in both Eastern Europe and Middle East brought many political and military changes.
Regional concentration is good in both type of cultures which is evident even on the map.

Differences are as follows: -

Eastern Europe states were not autonomous. There was stability in the region, Middle east has mix culture, on the other hand, with different levels of autonomy.
In Eastern Europe, there were many protesters or revolutionists who were though in small number were popular and had great influences over people. But, even large number of opposition leaders in Middle east, they were not that effective.

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3 years ago

What is the difference in the interactions of atoms in the covalent and ionic bonds

poizon [28]

Answer:

ionic bond: An attraction between two ions used to create an ionic compound. This attraction usually forms between a metal and a non-metal. covalent bond: An interaction between two atoms, which involves the sharing of one or more electrons to help each atom satisfy the octet rule.

Explanation:

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3 years ago

Natural selection occurs because of all of the following EXCEPT –

zepelin [54]

Some populations are related to others

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4 years ago