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liubo4ka [24]
3 years ago
10

Core Composed of: Conditions:

Biology
1 answer:
puteri [66]3 years ago
6 0
(Core )composed of: the core is made almost entirely of metal—specifically, iron and nickel.
Conditions: The temperature at the inner core's surface is estimated to be approximately 5700 K which is about the temperature at the surface of the Sun.
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Which process takes CO2 out of the atmosphere
mihalych1998 [28]

Answer:

Photosynthesis removes CO2 from the atmosphere and replaces it with oxygen.

Explanation:

Photosynthesis removes CO2 from the atmosphere and replaces it with oxygen. By respiration, O2 is removed from the atmosphere and replaced with CO2. However, these processes are not balanced. Some organic matter is not oxidized. (I'm very sorry if I'm wrong but I believe it's that)

6 0
2 years ago
Read 2 more answers
You are a molecule of phosphorus. Choose a starting point in the process you would go through to move through the entire cycle.
noname [10]

Answer:

First I'd be found in rocks. Erosion would wash me into the soil. Then I'd be absorbed by plants, fungi or microorganisms so they can grow. Animals would get me by eating the plants or drinking the water that eroded the rock. The plants and animals die and I'm absorbed back into the soil.

Explanation:

Phosphorus Cycle Steps

The phosphorus cycle is a slow process, which involves five key steps.

Weathering

Since the main source of phosphorus is found in rocks, the first step of the phosphorus cycle involves the extraction of phosphorus from the rocks by weathering. Weather events, such as rain and other sources of erosion, result in phosphorus being washed into the soil.

Absorption by Plants and Animals

Once in the soil, plants, fungi, and microorganisms are able to absorb phosphorus and grow. In addition, phosphorus can also be washed into the local water systems. Plants can also directly absorb phosphorus from the water and grow. In addition to plants, animals also obtain phosphorus from drinking water and eating plants.

Return to the Environment via Decomposition

When plants and animals die, decomposition results in the return of phosphorus back to the environment via the water or soil.  

Plants and animals in these environments can then use this phosphorus, and step 2 of the cycle is repeated.

Human Impact on the Phosphorus Cycle

Humans have had a significant impact on the phosphorus cycle due to a variety of human activities, such as the use of fertilizer, the distribution of food products, and artificial eutrophication. Fertilizers containing phosphorus add to the phosphorus levels in the soil and are particularly detrimental when such products are washed into local aquatic ecosystems. When phosphorus is added to waters at a rate typically achieved by natural processes, it is referred to as natural eutrophication. A natural supply of phosphorus over time provides nutrients to the water and serves to increase the productivity of that particular ecosystem. However, when foods are shipped from farms to cities, the substantial levels of Phosphorus that is drained into the water systems is called artificial or anthropogenic eutrophication. When levels of phosphorus are too high, the overabundance of plant nutrients serves to drive the excessive growth of algae. However, these algae die or form algae blooms, which are toxic to the plants and animals in the ecosystem. Thus, human activities serve to harm aquatic ecosystems, whenever excess amounts of phosphorus are leached into the water.

8 0
3 years ago
Speciation is not a precise division: overlap between closely related species can occur in areas called hybrid zones. Organisms
zhannawk [14.2K]

Answer:

The emergence of new species from surviving ancestral species and both species continue to interact during a transition period is known as Sympatric Speciation.

Explanation:

Hybrid Zone is the  area where two species continue to interact. Hybrid offspring are produced by two different species.

1) hybrid offspring

2) zones

3) reinforces

4) zones

5) Slow down

6) gradual speciation model

7) punctuated equilibrium

6 0
3 years ago
5. In the following chemical equation, ____ and ____ are
Katarina [22]

Answer:

reactants: carbon dioxide & water . products: glucose & oxygen

Explanation:

this is the chemical equation for photosynthesis

8 0
2 years ago
What is negative feedback, and how does this process help to keep values (like body temperature) constant or within a small rang
const2013 [10]

Answer:

Negative feedback mechanism may be defined as the system of the body in which the final output reduces the process and result in the less output. Negative feedback mechanism is important for the regulation of homeostasis.

The negative feedback mechanism maintains the constant body temperature. The change in body temperature is sensed by the receptors. The low body temperature initiates the hypothalamus to increase the physiological process.    The blood vessels narrow, body start shivers and hormone stimulation increases body temperature. When the body temperature become normal, the hypothalamus will no longer be stimulated and stop its effect.

5 0
3 years ago
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