BIOLOGY MIDDLE SCHOOL

Water makes up about__percent of the human body.

80
60
90
70

Answers

Answer 1
Answer:

Answer: 60

it makes up about 60-65%

Explanation:
Answer 2
Answer:

Answer:

60

Explanation:

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Are are many common foods we eat more likely to be acidic or basic?

Answers

It depends what you eat buddy say you drink lemonade thats acidic but something like meat is basic  

How do the lungs function within the excretory system?

Answers

Because your lungs remove carbon dioxide from your body

Compare and contrast plant organs and human organs

Answers

we hummens have blood in our orgens and plants don't.

5. How do enzymes found in your saliva aid in digestion?A. They provide energy to initiate the chemical reactions involved in digestion
B. They decrease the rate of the chemical reactions involved in digestion
C. They increase the rate of the chemical reactions involved in digestion
D. They aid in the process of moving food more quickly to the stomach
E. They are consumed as part of the chemical reactions involved with digestion

Answers

Answer:

the answer is C) They increase the rate of the chemical reactions involved in digestion

Explanation:

The digestive functions of saliva include moistening food, and helping to create a food bolus, so it can be swallowed easily. Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach.

Answer: (c)

Explanation: they melt down the food chemicals into a not very pretty clump of siliava and chewed up food which is not slowing down, it is speeding up.

What is the difference between a runner spitting versus just someone standing still?

Answers

Difference between a runner spitting versus just someone standing still

Explanation:

Runners while running do breathe, pant, and heave heavily which leads to spitting in the open as a habitual practice. This spitting while on motion leads to heavy dispersal of aerosol droplets which suspends in the air.

Droplets due to respiratory or spitting sources from any person who is infected with any infectious and contagious viral, bacterial, or other infectious diseases will have high chances of the pathogen present in them.

Further the rate and spread of droplet dispersal and transmission of pathogen will be higher compared to that from someone standing still. This puts greater potential for the spread of such droplet transmitted diseases.

Hence proper distancing should be maintained between runners and others to prevent spread of droplet transmitted diseases.

How might having the anther atop a tall filament make it more likely that plants will be pollinated?

Answers

When the filament is tall, the anther is more exposed to different pollination agents. There are more chances that pollen grains stick on the animals' and insects' bodies or get blown by winds.

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Flowers are reproductive structures in charge of the plant's sexual reproduction.

There are feminine and masculine reproductive structures.

The masculine structures include stamens, which are composed of anthers and filaments.

  • The anther produces pollen grains of male sex cells.

  • The filament provides support to the anther.

Mature pollen grains are driven to the stigma of the same flower or other flowers for the fertilization process.

Different agents are in charge of this transport: animals, wind, insects, water streams.

When filaments are tall, the anthers are more exposed and not protected by the flower.

So these anthers are more accessible for different agents.

  • There are higher chances that insects and animals that visit the flowers take the pollen in their bodies.

  • There are more chances that accidental pollination by animals occurs when they get in touch with this pollen and accidentally take it to another flower.

  • As the anther is more exposed, the wind can transport pollen easier.

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Related link: brainly.com/question/22564390referrer=searchResults

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Make connections: How might having the anther atop a tall filament make it more likely that plants will be pollinated? It gets the pollen grains up higher. That makes it more likely that a visiting insect will pick them up.4. ... When the pollen forms on the stamen, the pistils are not ready to receive it.
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