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vazorg [7]
3 years ago
11

what happens to the two small balloons inside as you pull down the big balloon at the bottom of the model?​

Biology
1 answer:
xeze [42]3 years ago
6 0

Answer:

The lower pressure balloon will expand. Figure 2 (above left) shows a typical initial configuration: the smaller balloon has the higher pressure. So, when the valve is opened, the smaller balloon pushes air into the larger balloon. It becomes smaller, and the larger balloon becomes larger.

Hope this is helps out

Explanation:

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Is natural gas a limited resorce
Mkey [24]

Explanation: Natural gas is a limited resource. Natural gas is in the fossil fuel family and it's underground. I think it's pretty plentiful meaning that there's a lot in the United States of America. Many people use it for home heating instead of heating oil. Some people have oil trucks where the oil truck has to come and deliver oil to them.

So, natural gas is limited resource because it's a fossil fuel and it gives off emissions. It's in the ground and it's from years of decaying stuff. It's not like solar or wind power, it's a limited resource.

6 0
3 years ago
Five factors affecting self pollination and cross pollination. Give five for each, pls help me ASAP​
vekshin1
<h3><u>Self</u><u> </u><u>Pollina</u><u>tion</u><u>:</u></h3>
  • Bisexuality
  • Cleistogamy
  • Homogamy
  • Chasmogamy
  • Position of antlers

<h3><u>Cros</u><u>s</u><u> </u><u>Pollination</u><u>:</u></h3>
  • Dicliny
  • Self incompatibility
  • Male sterility
  • Heterostyly
  • Dichogamy

<h3><em><u>Keep</u></em><em><u> </u></em><em><u>lear</u></em><em><u>ning</u></em><em><u>.</u></em></h3><h2 />

5 0
2 years ago
The failure, till now, to produce an effective AIDS vaccine may be due to the fact that the causative agent mutates continuously
Furkat [3]

Answer: A. True.

Explanation:

The AIDS virus may constantly change it's form in the host body by mutating. The body immune system becomes unable to produce antibodies which can fight against these mutated cells.

Also, the vaccination used for the purpose of immunization will not be able to combat will the causative agent in the body of the host. As the vaccine contains the microbe which can fight against the virus present in the body. But as the virus is changing it's form the microbe may not be able to compete with the virus. Hence, the use of vaccine will become useless.

3 0
3 years ago
at over 5 million degrees celsius the temperature of the sun core is high enough for nuclear to occur
Paraphin [41]

Answer:

Yes (but not how you think)

Explanation:

I'm assuming that you mean if nuclear fusion, where two atoms (in this case mostly hydrogen) fuse into one heavier atom, and release a lot of energy.

However, fusion happens when there is a tremendous amount of pressure or heat. This is found in the core

The 5 million degrees is found on the surface of the sun, but at the core, it is at 15 million degrees.

In addition, the pressure is so extreme that if forces atoms to become one, despite the fact they don't like being together (try finding 2 strong magnets and hold them so that they try to repel each other and try and make them touch, it's hard! Now imagine having to put a million of times the amount of strength!)

So, the sun is capable of nuclear fusion, but at the core, where it is 15 million degrees!

(fun fact: scientists are trying to build "mini-suns" called Fusion reactors to try and harvest the power of the sun!)

3 0
2 years ago
Looking at the image of the freshwater lake ecosystem in the reading, can you name biotic and abiotic factors in this specific e
atroni [7]

Answer:

Biotic factors include: Fish (phytoplankton-eater, zooplankton-eater, predator)

, Crayfish

, Zooplankton

, Grasses, phytoplankton, herbivorous insect, worms, etc.

Abiotic factors include: Sunlight, Rainfall, Sedimentation, Weather, Minerals, Temperature.

Changes that would impact the biotic factors include:

Water, air pollution

Human activities: such as overfishing, rechanneling of the water for purposes such as irrigation, domestic or industrial use, or dredging of the bottom of the lake.

Explanation:

An ecosystem is composed of biotic and abiotic factors. Abiotic factors are non-living environmental factors such as water, air, soil, sunlight, and minerals. In aquatic ecosystems, abiotic factors include substrate type, water depth, nutrient levels, temperature, salinity, and waterflow. Biotic factors are the living organisms in the ecosystem and they include animals, birds, plants, fungi, etc.

In the image of the freshwater lake ecosystem given,

Biotic factors include: Fish (phytoplankton-eater, zooplankton-eater, predator)

, Crayfish

, Zooplankton

, Grasses, phytoplankton, herbivorous insect, worms.

Abiotic factors include: Sunlight, Rainfall, Sedimentation, Weather, Minerals, Temperature.

Changes that would impact the biotic factors include:

Pollution: pollution such as water pollution and air pollution will adversely impact the biotic factors.

Human activities: such as overfishing, rechanneling of the water for purposes such as irrigation, domestic or industrial use, or dredging of the bottom of the lake.

8 0
3 years ago
Read 2 more answers
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