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rosijanka [135]
3 years ago
5

Which provides the best example of perseverance ?

Biology
1 answer:
Masteriza [31]3 years ago
4 0
School is an example like you have a load of work and its hard and u keep going cuz u know it will get you someone good adn another is running a marothon even though its hard you just keep going. hope this helps and please rate below :)
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Which muscles are used for shallow breathing and deep breathing. And what difference does it make?
zavuch27 [327]

Answer:

i am not that much of science lover but i there u go

Explanation:

During quiet breathing, the diaphragm and external intercostals must contract. A deep breath, called diaphragmatic breathing, requires the diaphragm to contract. As the diaphragm relaxes, air passively leaves the lungs. A shallow breath, called costal breathing, requires contraction of the intercostal muscles.

i hope it helped

3 0
2 years ago
A marine biologist wants to investigate the effect of ocean tides on certain aquatic ecosystems. Can this be studied by the scie
lutik1710 [3]
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MariettaO [177]

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The cycads, a mostly tropical phylum of gymnosperms, evolved about 300 million years ago and were dominant forms during the age
Andrei [34K]

Answer:The Cycad tree is the sporophyte.They have flagellated sperm.

Explanation:

During pollination, the contents of the megaspore divide to form many–celled gamateophyte called the endosperm and archegonium. There is a micropyle opening with a sticky fluid, which traps the wind-borne male gametophyte (microspores) which,at this time is made up of prothallus cell;an antheridial cell and a large tube cell. The trapped microspore is sucked into the archegonia chamber. Antherizoids are released, but only one penetrates each oospore and fuses with the female nucleus. The zygote is formed in the ovule and the later develops into seed.The diploid seed germinates into a new sporophyte plant and the life cycle begins again. Examples of cycad include Cycas circinalis ,Cycas celebrical and Cycas revoluta

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Freddy mixed 10 g of a powdery substance with 200 g of an acid solution. A bubbly solution weighing 205 g was formed. Which best
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