What is the purpose of biogeochemical cycles? What are the different types of cycles?

Biology

1 answer:

juin [17]3 years ago

8 0

Water, Phosphorus, Nitrogen, Carbon. Recycles things

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Identify Three Solutions To Help Solve 3 Climate Issues

Dafna1 [17]

Answer:

1. Use less cars travel way less with them if youan use a bike or walk to try stop too much CO2 being produced

2. Use less papaer or recyle trees are being cut down for them wich break down habittats and prevents filtrating CO2

3.RECYLE recylimg is something everyone can do it helps stop polution, rubish being frown in the seas oceans and animals eating them

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3 years ago

Read 2 more answers

1. 1 Water makes up between 70-90% of the weight of most life forms, and nearly all chemicals present in living matter are solub

boyakko [2]

Answer:

The correct model is D.

Note: The first attachment below shows the different models. The second attachment shows the correct structural model of the water molecule.

Explanation:

A water molecule is composed of one atom of oxygen and two atoms of hydrogen.

A water molecule is polar, i.e. it contains positively and negatively opposite ends. The polar nature of the water molecule is due to strong electronegativity of oxygen which results in an uneven sharing of the bonding electrons between oxygen and hydrogen. The oxygen atom attracts the shared electrons more to itself, thereby, it acquires a partial negative charge, while the hydrogen atoms acquire a partial positive charge.

The bond angle between the oxygen and hydrogen atoms is approximately 105°. Therefore, from the first attachment below, the correct model for the water molecule is D.

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3 years ago

Which one of the following is a difference between a normal cell and a cancer cell?

mixas84 [53]

For the first question, i think the correct answer is A. Normal cells undergo apoptosis while cancer cells don't. For the second question, The answer is option B.<span> </span><span>Cell division has two checkpoints namely, G1 checkpoint and spindle assembly checkpoint. The checkpoint which determines if division has properly occurred is the G1 checkpoint. At this point, is a damage in the DNA is detected or the has not reach the optimum size, the cell is stopped in G1 and is not allowed to proceed to further process.</span>

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Why are old growth forests considered “healthy” ecosystems?

Pavlova-9 [17]

Because they have not been distrubed

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Which type of energy is stored in chemical compounds and released in chemical reactions

frutty [35]

Answer:

A Chemical Energy

Explanation:

Chemical energy, Energy stored in the bonds of chemical compounds. Chemical energy may be released during a chemical reaction, often in the form of heat.

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2 years ago