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agasfer [191]
3 years ago
5

It is important to maintain septic systems in order to _______.

Biology
1 answer:
victus00 [196]3 years ago
3 0
The correct answer , It is important to maintain septic systems in order to prevent untreated sewage from contaminating groundwater. When untreated sewage contaminates groundwater, many lives will be in danger not only us humans but every living thing existing in this planet.

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What types of natural pollution?
Drupady [299]
Burning fossil fuels
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Complete the passage to describe sexual reproduction.
deff fn [24]
Egg, sperm, and embryo
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The purpose of the vortex instrument is to
Anastaziya [24]

The purpose of a vortex instrument is to mix "small vials of liquids" in a laboratory.

Explanation:

A vortex instrument or a mixer is an laboratory instrument which is used to mix liquids in small vials.

The term vortex means swirling of a mass of air and this instrument also mixes liquid through swirling movement inside a tube.

A vortex unit is run by an electric motor which moves a rubber cup attached to the drive shaft.

The rubber cup swirls or oscillates in a circular motion and when a test tube with the liquid is pressed in the cup, the liquid contents get mixed through the transmission of the circular motion from the cup to the liquid. The speed of the rotation can be controlled.

7 0
3 years ago
What best explains snowshoe hare–lynx population cycles?
jasenka [17]

Answer:

b. the interaction of food availability and predation intensity

Explanation:

The complete question is as follows:

What best explains snowshoe hare and lynx population cycles?

a. the seasonal trends in food availability

b. the interaction of food availability and predation intensity

c. natural variation in the number of lynxes born

d. the population density of snowshoe hares

  • The population of snowshoe hare and lynx are closely linked to each other and this is because the primary food of lynx is the snowshoe hare.
  • When the number of hares is more lynx eat more of hares and less of other food and when the number of hares is scarce, lynx eat alternate food.
  • However, in the scarcity of hares, the other foods do not provide lynx with their nutritional needs and therefore, many of them leave their home grounds.
  • Therefore, when the hare number declines lynx number also declines.
  • The population cycle spans over 8-11 years.
  • The number of hares decreases at the end of the cycle and so does the number of lynx.
  • However, at the beginning when the number of the hare is more, they starve due to competition and are easily caught by the lynx and thus, the lynx population also increases.
3 0
3 years ago
In 1939, heinrich kluver and paul bucy surgically lesioned this part of the brain, which eliminated defensive responses in vario
Anettt [7]

The correct answer is the amygdala.  

The fear response begins in the brain and scatters all through the body to make amendments for the flight reaction or best defense. The response of fear initiates in the part of the brain known as the amygdala. It is the almond-shaped arrangement of nuclei in the temporal lobe of the brain and is involved in determining the emotional silence of the stimuli.  

For example, the amygdala gets stimulated whenever one witnesses a human face with an emotion. This response is more noticeable with fear and anger. A threat sign, like the sight of a predator, initiates a fear reaction in the amygdala that stimulates the regions taking part in preparation for motor activities taking part in flight or fight.  


3 0
3 years ago
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