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dimaraw [331]
3 years ago
5

An early consequence of the release of oxygen gas by plant and bacterial photosynthesis was to 17) A) cause iron in ocean water

and terrestrial rocks to rust (oxidize). B) prevent the formation of an ozone layer. C) make life on land difficult for aerobic organisms. D) change the atmosphere from oxidizing to reducing. E) make it easier to maintain reduced molecules.
Biology
1 answer:
omeli [17]3 years ago
3 0

Answer:

The correct answer is option A) "cause iron in ocean water and terrestrial rocks to rust (oxidize)".

Explanation:

During ancient times, the reproduction success of plants and cyanobacterias led to the accumulation of oxygen gas in the atmosphere. One early consequence of this accumulation was the oxidation of the iron in ocean water and terrestrial rocks. This phenomenon is the cause of banded iron formations, which formed in seawater and sank to the ocean bed.

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Answer:

Cellular respiration

Explanation:

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Explain why populations tend not to continue to increase exponentially in an environment: 2. Explain what is meant by environmen
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Answer and Explanation

Explain why populations tend not to continue to increase exponentially in an environment: The exponential growth model is based on unlimited resource availability which means that there is no effect depending on density. There is no competition for resources. Natality and mortality rate do not depend on density. There is a constant growth rate per capita and it is proportional to the population size. A population that exhibits exponential growth model increases in proportion to its size. In the Logistic growth model, the population growth depends on density, the natality and mortality rate depends on the population size, which means 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's 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.

Explain what is meant by environmental resistance: It refers to the limiting factors. There are factors and conditions that regulate the population growth, that might be biotic or abiotic, and that avoid the over-growth of a population in a certain space. It results in a natural equilibrium of its biotic potential.  

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K is a constant that coincides with the size of the population at the equilibrium point when the natality rate and the mortality rate get qual to each other.

Explain the importance of carrying capacity to the growth and maintenance of population numbers: If the population size, N, is inferior to K (N<K) the population can still grow. When N approximates to K, the population´s growth speed decreases. When N=K, the population reaches equilibrium, and when N is superior to K (N>K) the population must decrease in size because there are not enough resources to maintain that size.  

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Describe a likely outcome for a rabbit population after the initial rapid increase had slowed: There are some typical steps in an invasion process:

1) Introduction or dispersion to the new area,

2) Naturalization. The new species establishes in the new area. It can grow, reproduce and make use of resources.

3) Overgrowth and uncontrolled expansion.  Exponential growth

<em>4) Interaction with other species.  </em>At this point, they compete for limiting factors such as food or space. Their population is big enough to be affected by resource availability and by other species that interact with them. The invasive species reach the point in the curve where they stabilize.

<em>5) Stabilization.</em> They reach an equilibrium point.  

Describe the effect that introduced grazing species might have on the carrying capacity. The introduced species expand fast and consume too many resources. Available resources, such as food or space, decrease.

3 0
3 years ago
Check my answers?
Lisa [10]

Answer:

  1. D
  2. A
  3. C
  4. D
  5. B .
<h3>explanation:</h3>

Hope this helps

5 0
3 years ago
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Convert 2.4 kg into cg. Please show your work.
Pavlova-9 [17]
Kg) x (1000g/kg x 100 cg/g
= 240,000 cg
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