1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kobotan [32]
3 years ago
5

plankton → Arctic cod and Arctic char → seals → polar bear Consider this simple arctic marine food chain. As we travel from plan

kton to polar bear, only about _________ of the energy in one trophic level gets passed to the next level.
Biology
1 answer:
Ket [755]3 years ago
7 0

As we travel from plankton to polar bear, only about ten percent of the energy in one trophic level gets passed to the next level.

Explanation:

The energy flow in an Ecosystem has to aspects which should be considered:

  • Firstly, the energy flows is unidirectional from producers through herbivores to carnivores.
  • Secondly the energy flow decreases with successive trophic levels.This is due to the fact that some energy is always lost as heat and is used by the organism at that trophic level.

Lindeman's work suggested that about 90% energy is used up at the trophic level and only ten percent of it is transferred to the next level.

This was later formulated as the Ten percent law.

You might be interested in
A 10-year-old child has an unknown infection and will need to provide a urine specimen for culture and sensitivity. To assure th
igomit [66]

Answer:

Obtain specimen before antibiotics are given.

Explanation:

Antibiotics may be defined as the chemicals given to kill or restrict the growth of the bacterial infection. The antibiotics are not available for virus as they can change their DNA.

The sensitivity results can be accurate if the nurse is able to ensure the successful culture of the antibiotics. Throat culture specimen is taken from the pharyngeal area. The aseptic technique can be used by the nurse for obtaining the blood and urine specimen.

Thus, the answer is obtain specimen before antibiotics are given.

7 0
3 years ago
A standard PCR cycle includes three steps: denaturation (95°C), annealing (55°C), and elongation (65°C).
xz_007 [3.2K]

Answer:

Denaturation process: The DNA template  

Annealing process: Primers  

Elongation process: dNTPs and Taq polymerase

Explanation:

For the denaturing process, the only ingredient that is required is the DNA template that will be separated from a double helix (or double strand) into a single strand, by increasing the temperature to 95 C, (at this temperature the hydrogen bonds that keep together the double stranded break). After the double strand is denatured, the following process is annealing. For this, the required ingredient are the primers; these primers will hybridize or anneal according to the nucleotide complementarity to the single strand of the DNA. Finally, for the Elongation process, you will require the Taq polymerase and the dNTPs. The enzyme will synthesize or “generate” a new strand of DNA based on the DNA template, using the provided dNTPs in the direction 5’ to 3’.

I hope this clarify you inquiry.  

6 0
3 years ago
A polypeptide in a wild type microbe contains the sequence Leu-Pro-Tyr-Ser-Pro. A phenotypic variant of the species has the pept
Katen [24]

Answer:

The mentioned case is an illustration of the missense mutation. A missense mutation is a kind of nonsynonymous substitution, that is, it is a mutation in which a variation in a solitary nucleotide leads to the formation of a codon, which encrypts for a distinct kind of amino acid.  

When a missense mutation takes place within a DNA, a modification in one of the RNA codon sequences results at the time of transcription. This change in codon will ultimately result in the formation of a different amino acid, which gets presented within a protein at the time of translation. Like in the given case, a change in codon resulted in the substitution of the amino acid tyrosine with an amino acid cysteine.  

8 0
3 years ago
What is a type of cell whose shape and structure enable it to perform a particular function
kifflom [539]
Plant cell. it an keep its shape beacuse it has a cell wall. it might have chlorophyll in it which allows photosynthesis
4 0
3 years ago
Which statement describes a similarity between the skeletal and muscular systems?
nasty-shy [4]

Answer:

D.Both systems control movement

Explanation:

Skeletal protect the organs and hold up the body to move and the muscular system is for controlling movement.

Feedback:I hope this helped you!!
6 0
3 years ago
Other questions:
  • Describe, in detail, to a freshman undergraduate student the basic principle underlying the separation of dna using agarose gel
    8·2 answers
  • Water molecules exhibit a property by virtue of which they can stick to each other. What is this property referred to as?
    9·1 answer
  • What are the two types of biological interactions?
    13·1 answer
  • 2 What is the chemical and genetic bases for the blood groups classification?<br>​
    12·1 answer
  • 4. Infer how scientists used knowledge gained from the I
    13·1 answer
  • In the Northern Hemisphere, currents curve to the right because of the
    12·1 answer
  • Which level is most commonly meant by biodiversity
    11·1 answer
  • Compare and contrast the two types of bonds
    15·1 answer
  • How they 're similar nucleus and ribosomes
    10·2 answers
  • Identify 2 things that can happen to a photon of infrared light as it makes its
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!