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Leto [7]
2 years ago
7

All living things must meet three major challenges of life, what are they​

Biology
1 answer:
allsm [11]2 years ago
5 0

mrbeast

Explanation:

mrbeast mrbeast

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Can you heat alcohol over an open flame. Give reason for your answer​
xxMikexx [17]

Answer:

No, you cannot. The problem is that alcohol fumes are flammable. If you heat over an open flame you risk igniting the fumes which will start a chain reactions.

Explanation:

ggl and knowledge

8 0
3 years ago
When blood flows through the heart, what force pushes the blood out of the heart and into the arteries?
LuckyWell [14K]
Left Ventricle pushes blood
7 0
3 years ago
What are the factors that determine the level of harm an introduced chemical has on the environment? (Site 1)
astra-53 [7]

Answer:

Following are the factors are given below:-

Explanation:

In general, the toxicity of a substance depends on the following factors.

  • Chemical type and inherent behavior.
  • Dosage, in particular the link dose-time.
  • Exposure route.
  • Species.
  • Stage in life, such as child, young adult, or an older adult.
  • Gender.
  • Fitness to drink.
  • Metabolism.
  • Allocation inside the organ.
  • Excretion
  • Human safety, including organ function and childbirth, requiring physical effects that can affect toxicity.
  • Nutritional status
  • Many chemicals are available.
  • Circadian rhythms (the time of day caused by a medication or other substance)

4 0
3 years ago
Which feature is common to all primates?
JulsSmile [24]
A, this is espacially true with chimps and humans
5 1
3 years ago
Read 2 more answers
The cause of respiratory distress syndrome in premature infants is
FrozenT [24]

Answer:

The cause of respiratory distress syndrome in premature infants is <u>lack of surfactant in the lungs because the lungs has not fully developed.</u>

Explanation:

Respiratory distress syndrome is a type of neonatal disease of respiration caused by the lack of surfactant production by the lungs.

Normally the lungs of fetus start the formation of surfactant during the third trimester of pregnancy (26 weeks through labour and delivery ). The surfactant is produced by type II alveolar cells and  is the lipoprotien complex that has surface tension lowering effect (surface active agent ) having both hydrophobic and hydrophilic properties thus coats the air sacs and alveoli.

In the premature infants, the lungs are not fully developed hence the adequate amount of surfactant is missing thus resulting in Respiratory distress syndrome.

8 0
3 years ago
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