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Elden [556K]
3 years ago
5

What are three adaptations that frogs have that make them amphibians?

Biology
1 answer:
never [62]3 years ago
5 0
Cold blooded, lay eggs in water, and respire both by skin and lungs, and they have a three-chambered heart. 

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Murljashka [212]

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The correct option is E) Contraction still occurs because Ca2+ can enter the cell directly through Ca2+ channels in the plasma membrane and bind to calmodulin.

Usually, the calcium ions are released from the sarcoplasmic reticulum of a cell during a muscle contraction, but if those are blocked, the contractions is an cell can still arise through the calcium ions which are present in the cell membrane of a cell.

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23. What biological term is best used to explain the color of leaves changing with the decreased in ambient UV light as seasons
GarryVolchara [31]

Answer: a. Photo-periodism

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The relative length of the day is considered as a major factor in the development of plants, particularly in sexual reproduction. The plants were grouped considering that the flowering and fruiting occurs only when the length of the day is within certain limits so that these phases are achieved only in certain times of the year. Therefore, some species respond to long days, while others respond to short days, and still, others are capable of responding to all day lengths. The name and meaning of each group became as follows:

Short Day Plants: They are the species that bloom in smaller photoperiods than a critical maximum.

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Neutral day plants: They are those that bloom in a wide range of the photoperiod.

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Shelby performed an investigation in which she monitored her heart rate while she ran on a treadmill. She used a heart rate moni
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From where do the gems used in jewelry come?
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I believe the answer would be C. pleas brainliest

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