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KATRIN_1 [288]
3 years ago
15

Tadpoles must undergo a major metamorphosis to become frogs. This change includes reabsorption of the tail, growth of limbs, cal

cification of the skeleton, increase in rhodopsin in the eye, development of lungs, change in hemoglobin structure, and reformation of the gut from the long gut of an herbivore to the short gut of a carnivore. Amazingly, all of these changes are induced by thyroxine. What is the most likely explanation for such a wide array of effects of thyroxine?
Biology
1 answer:
nevsk [136]3 years ago
4 0

Answer:

There are many receptors for thyroxine on different target cells (tissues), so its effect can be huge

Explanation:

Target cell for a certain hormone is a cell that have hormone receptor specific for that hormone. There are two main types of receptors on target cell:

  • cell membrane receptors (also called  trans membrane receptors)-usually for peptide hormones, such as insulin
  • intracellular receptors (also called nuclear receptors)-usually for steroid hormones, such as testosterone.

Hormone binding to the receptor leads to the signal cascade within the cell, which results in cell response.

Receptors for thyroid hormones are nuclear receptors.

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Sustainable agriculture is farming that conserves natural resources and helps keep the farmed land productive indefinitely . Thi
UkoKoshka [18]

Answer:A

Explanation: more resources are usually need it for the initial set up and planning of traditional large scale agriculture techniques.

8 0
3 years ago
How do the structures of the fruiting body and hyphase relate to their function
Y_Kistochka [10]

Answer:

Fungi is a unique living organism and it is not considered plant or animal and forms its own kingdom Fungus. On of the most unique features of a Fungi is that its body is composed of thread like structure called Hyphae and produce fruiting bodies, in which spores are formed are help the fungus in reproduction.

Coming towards the question that what is the unique feature of the structure of Hyphae and fruiting body that helps them in their function.

1: Hyphae:

Hyphae are composed of thread like structures called Hypha that are filamentous in nature. Due to its filamentous nature, it helps the fungi to better absorb nutrients from soil and anchor the fungus well in soil.

2: Fruiting body:

The fruiting body is main organ of fungi concerned with reproduction. It has rounded cap like structure in which spores are formed and are disseminated from one place to another and help fungi in reproduction.

Hope it helps!

6 0
3 years ago
Through mycorrhization, a plant obtains important nutrients such as ________.
Lisa [10]
Answer is phosphorus, zinc and copper
8 0
3 years ago
Explain why a signal cascade can be useful in certain cell processes
natima [27]
A signal cascade is a series of chemical reactions which are triggered by a stimulus acting on a receptor that is then transduced to the intracellular space through second messengers. Finally, effector molecules receive the signal causing a cellular reaction to the initial stimulus. A signal cascade is very useful because it facilitates and accelerates the communication between cells that could be in different parts of a living organism. This communication is vital for cell processes in complex multicellular organisms.
7 0
4 years ago
imagine you are visiting Iceland. your flight to Iceland from the east coast of the United States is shorter than your return fl
navik [9.2K]

Answer:

The main reason for the difference in travel time is due to the jet stream. The jet stream is high altitude wind that blows from the west to the east across the globe. Airplanes fly into the jet stream at 30,000 feet and then travel with these winds.

Explanation:

theres my answer

4 0
2 years ago
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