In which way does the composition of soil, an abiotic factor, rely on living things?

Biology

1 answer:

Ivenika [448]3 years ago

6 0

Answer:

Soil Layers. Soil is composed of both biotic—living and once-living things, like plants and insects—and abiotic materials—nonliving factors, like minerals, water, and air. Soil contains air, water, and minerals as well as plant and animal matter, both living and dead. These soil components fall into two categories.

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Which best summarizes the findings of Hershey and Chase?

Brums [2.3K]

Basically Hershey and Chase studied bacteriophages (viruses that infect and destroy bacteria), which they got the idea from Avery who got the idea from Griffith.
so the results of Hershey and Chase's experiments were that genes are made from Deoxyribonucleic Acid.
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3 years ago

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Which of the following are necessary for a seed to germinate?

IceJOKER [234]

Answer:

The question lacks options, the options are:

A. moisture content of seed must be at least 9%

B. Moisture content of the seed must be less than 9%

C. certain enzymes in the seed are activated

D. temperature must be above 80 degrees

E. temperature must be below 80 degrees

The answer is A

Explanation:

Germination is practically the very first step of every seed-producing plant. It is the process whereby seeds sprout or begin to grow. Germination requires certain conditions to be met in order to occur. This conditions include presence of moisture in the soil etc.

The water is absorbed by the seed helps to soften the seed coat, which protects the seed from damage. The seed coat ruptures, causing the emergence of growth structures from the seed. In general, seeds need water to activate their dormant physiology. Hence, the moisture content of the seed must not be lower than 9%.

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3 years ago

Which organism is the best example of a r-strategist?

Svet_ta [14]

Answer:

Examples include rabbits, bacteria, salmon, plants such as weeds and grasses, etc. Many insects are r-selected. For example, ants can be considered r-selected. Plants such as dandelions are another good example of an r-selected species.

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The roles of the nurse in working with clients and families include which of the following?

vodomira [7]

I believe the correct answer is B

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4 years ago

During photosynthesis what role is played by the radiant energy of the sun

Natali [406]

Answer:

The radiant energy of the sun is used by chlorophyll as an energy source to excite photosystems I and II, which are located in the membrane of the thylakoid.

Explanation:

When the light energy is converted into chemistry inside the photosystem, electrons are released and travel from photosystem II to photosystem I, through a protein complex; plastoquinone, cytochrome B, and plastocyanin.

When light hits, enzymes with REDOX power are activated while in photosystem I, one of the electrons converts NADP to NADPH, capturing protons from the stroma. Finally the NADPH and the ATP generated by the ATP synthetase of the thylakoid membrane, are products of the light stage of photosynthesis

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