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erik [133]
3 years ago
10

Visit the link below and use the information to

Biology
2 answers:
ryzh [129]3 years ago
6 0

Answer:

Primary succession is the type of succession which occurs in areas where there was no form of life before or it occurs in areas where the previous form of life has fully been eradicated with not even the soil present from that ecosystem. For example, a land where lava eruption has occurred.

A secondary succession is the type of succession which occurs in areas where there was life before which was removed by natural disasters like fire, flood or by human activities. This kind of areas might have the soil texture and composition to support life again. But for primary succession, the rocks will eventually have to be broken down and soil particles would form with the passage of time. Then only the land will be able to support life. Hence, primary succession takes longer to occur.

Andru [333]3 years ago
3 0

Answer:

Soil with nutrients is already present.

Seeds are present from earlier occupants, brought in by wind, and/or germinate after fire.

Explanation:

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Please help me , Describe how bonds contain energy and what the energy is used for
astraxan [27]

Answer:

Chemical bonds contain potential energy.

Explanation:

Chemical bonds always contain potential energy. The atoms of the bond want to move to a lower energy to become more stable.. The energy for breaking bonds only comes when stronger bonds are formed.  This energy is used to tear apart the bonds holding the Hydrogen atoms together. The strength of the covalent bonds depend on the overlap between the valence orbitals of the bonded Atom.

6 0
3 years ago
A group of scientists designed a clinical study to investigate the effects of cholesterol deficiency in humans. For the duration
viva [34]

Answer:

c. none of the subjects to show signs and symptoms of a cholesterol deficiency during the entire study.

Explanation:

this is because the blood cholesterol is from two sources. Nearly 80% of the cholesterol the body needs  are made by the liver and intestine.certain small amounts are also produced in the adrenal glands and the reproductive organs.The remaining fragment amounts comes from the diets.

Therefore even if these subjects  were fed with diet without cholesterol, it will not have any significant effects on the body cholesterol composition. Therefore no symptoms of its deficiency will be observed.

Generally it biosynthesis is regulated by the amount of cholesterol present in the blood.

3 0
2 years ago
The Earth's water in all of its forms makes up the ————
Anuta_ua [19.1K]

Answer:

hydrosphere

Explanation:

definition: the hydrosphere is the sum of earth's water, in the ocean, the ground, on the surface, and in the air.

7 0
2 years ago
Read 2 more answers
The MOST accurate way to determine the evolutionary relationship between two animals is through the examination of
baherus [9]

Answer;

DNA or protein sequences of shared genes


The MOST accurate way to determine the evolutionary relationship between two animals is through the examination of DNA or protein sequences of shared genes.


Explanation;

DNA or protein sequences of shared genes. Biochemical evidence is extremely accurate in determining the relationship between two organisms. Many animals have been re-classified, due to DNA evidence.


5 0
3 years ago
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many endangered species are predators that belong to the higher trophic levels. Which is the process that primarily affects anim
Marta_Voda [28]

Answer:

Top predators at the highest trophic levels eat lower-level predators and herbivores

Explanation:

A trophic level is defined as one group of organisms in the ecosystem occupying the same level in the food chain, which is composed of different levels (primary, secondary and higher levels). Top predators at the higher levels maintain the trophic balance by eating other species that eat on primary producers/consumers, thereby favoring the homeostasis of the ecosystem.

4 0
3 years ago
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