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Anna71 [15]
3 years ago
6

What is one feedback mechanism that happens as you increase exercise and muscle activity

Biology
1 answer:
jenyasd209 [6]3 years ago
6 0
As you increase exercise and muscle activity, your heart rates increases. That is one feedback mechanism. Your heart delivers oxygen and nutrients to your muscle and other parts of the body quicker.
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Below write a photo caption that compares the ecosystem shown above and the ecosystem shown on the previous page
denis-greek [22]
There's no image for reference

7 0
3 years ago
Which point in this graph shows the beginning of a period of exponential
IgorLugansk [536]

Answer:

C. Point B

Explanation:  

The exposed curve represents a logistic growth model. Population growth depends on density. Natality and mortality depend on the population size, meaning that there is no independence between population growth and population density.

When a population grows in a limited space, density rises gradually and eventually affects the multiplication rate. The population per capita growth rate decreases as population size increases. The population reaches a maximum point delimited by available resources, such as food or space. This point is known as the carrying capacity, K.

K is a constant that equals population size at the equilibrium point, in which the natality and the mortality rate get qual to each other.

Referring to population size as N, when

  • N<K, the population can still grow.
  • N approximates to K, the population´s growth speed decreases.
  • N=K the population reaches equilibrium,
  • N>K, the population must decrease in size because there are not enough resources to maintain that size.  

The sigmoid curve represents the logistic growth model.

  • Point A: During this period, the population size is relatively stable. Little growth is expressed.
  • Point B: At the beginning of this period, population growth increases softly. The more individuals are in the population, the more that reaches sexual maturity and get to reproduce, leaving fertile offspring. This fertile offspring also get to reproduce and leave more fertile individuals. At the end of the period, the curve shows a sharp slope, reflecting the significant increase in the population reproductive rate.  
  • Point C: At the beginning of this period, the population keeps on growing exponentially. But at the end of the period, the curve tends to stabilize, meaning that the population stops growing in size so fast. The population slow and gradually reaches the equilibrium point, K.
  • Point D: The population got to stabilize.
7 0
2 years ago
How might green spaces help reduce the negative impact that humans have on Earth’s water supply?
hoa [83]

It would give nature a place to fight back, and become more healthy, and less hindered. Cities mess up the evaporation cycle, and because of parks, the water is able to be soaked up by grass, and then released through evaporation. When it rains over a city, the water goes into gutters, and becomes more polluted.

8 0
3 years ago
A 3-column table has 4 rows. The first column is labeled Student with entries Zack, Nicole, Christian, Abigail. The second colum
svlad2 [7]

Answer:

Nicole

Explanation:

Sample Response: The mystery food sample did test positive for Sudan red. Nicole ate salad dressing, which contains fat, a lipid. She is the likely culprit.

.

.

The mystery food sample tested positive for lipids using the Sudan red indicator.

Nicole ate salad dressing.

Salad dressing contains fat, a lipid.

Nicole is probably guilty.

3 0
2 years ago
On earth, water can exist as a solid,a liquid,
Hitman42 [59]

On earth, water can exist as a solid,a liquid, or a gas because "the Earth is at an ideal temperature due to its distance from the Sun".

<u>Option: </u>A

<u>Explanation:</u>

Water can occur at a specific temperature of 273.16 K and pressure of 611.2 Pa in three various states i.e. solid, liquid and gas, and this phase is considered to be triple point water. At such a temperature and pressure the water keeps moving from solid to liquid phase and vice versa.

The average global temperature of Earth at aphelion is about 4 degrees Fahrenheit, or 2.3 degrees Celsius higher than at perihelion. This results as the the Southern Hemisphere has more oceans while the Northern Hemisphere has more land, which make the heating up of the land easier and faster.

5 0
3 years ago
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