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EastWind [94]
3 years ago
13

Which is an abiotic factor that affects a freshwater ecosystem?

Biology
2 answers:
konstantin123 [22]3 years ago
8 0

Answer: C. The amount of light

Explanation:

Abiotic factors are the non-living factors including the soil, water, sunlight and others. These factors affect both positively and negativity the living species in an ecosystem.

The amount of light is the abiotic factor that will affect the freshwater ecosystem. The light is required by the plants or other autotrophic organisms for the process of photosynthesis. These autotrophs produce food over which the diversity of aquatic fauna is dependent. Therefore, the amount of light available to distinct zones of the water body is important in order to sustain life of those organisms living in the zones.

If the amount of light is more this may lead to drastic increase in the temperature of the water body. The increase in the temperature may not prove to be suitable for the survival of the living species in water.  

yaroslaw [1]3 years ago
6 0
<span>C.The amount of light </span>
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Answer: Four amino acids.

Explanation:

RNA (ribonucleic acid) and DNA (deoxyribonucleic acid) are polymers made up of long chains of nucleotides. Thus, a nucleotide is the basic building block of nucleic acids and consists of a sugar molecule (ribose in RNA or deoxyribose in DNA) linked to a phosphate group and a nitrogenous base. <u>The nitrogenous bases can be Adenine (A), Thymine (T), Cytosine (C), Guanine (G) or Uracil (U) replacing T in RNA</u>. DNA is the molecule that stores the genetic information to synthesize polypeptides or proteins (set of amino acids). When proteins need to be created, DNA is transcribed into RNA and this RNA is translated in ribosomes to create polypeptides.

Complementarity is the ability to combine with their complement. A and T (or U) are complementary, while C and G are complementary to each other. Complementarity is the principle of replication and transcription, because it is a propery of both DNA and RNA sequences. Their the nucleotide bases at each position of the sequences are complementary, allowing cells to copy information.

Nucleotides in RNA are grouped into codons, which consist of groups of 3 nucleotides where each codon codes for an amino acid. Therefore, <u>the sequence of bases in nucleic acids determines which protein will be synthesized</u>. Protein synthesis begins with a start codon (AUG, which codes for the amino acid methionine) and ends with a stop codon (UGA, UAG and UAA). So, if there are 15 nucleotides, there are 15 bases. Since they are grouped in groups of 3, we will have a polypeptide of 4 amino acids.

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3 years ago
Quaking aspen trees can send out underground stems for asexual reproduction. Sexual reproduction is not as common, but when it d
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Answer:

38

Explanation:

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