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kirill [66]
3 years ago
8

What is the eccentricity of a completely flat ellipse?

Biology
2 answers:
noname [10]3 years ago
8 0

Eccentricity is a measure of how 'out of round' an ellipse is.  If the eccentricity is zero, it is not squashed at all and so remains a circle. If it is 1, it is completely squashed and looks like a line.

Explanation:

The eccentricity of an ellipse is a model of how approximately circular the ellipse. Irregularity is determined by the resulting formula eccentricity = c/a where c is the distance from the middle to the focus of the ellipse a is the range from the center to a vertex.

A flat line has e = infinity. A parabola is the curve /orbit created when e = 1 and is equidistant from a location and a line. When the eccentricity of the orbit is higher than 1.0000, the orbit converts a hyperbola. A complete hyperbola has two moieties and two foci.

DiKsa [7]3 years ago
4 0
Eccentricity is a measure of how 'out of round' an ellipse is.  If the eccentricity is zero, it is not squashed at all and so remains a circle. If it is 1, it is completely squashed and looks like a line. Hope this helps. Have a nice day. Feel free to ask more questions.
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Please help!
Dafna1 [17]

Answer:

C. could not provide a mechanism for moving continents

Explanation:

Without the discovery of magnetic reversals recorded on the ocean floor, scientists  could not provide a mechanism for moving continents.

Magnetic reversals are responsible for geological shifts and depend on the distribution of tectonic plates that causes movements of continents.

Asymmetric movement of tectonic plates leads to movement of continents  and the degree of asymmetry varies with the same rythm of the magnetic reversal rate.

Hence, discovery of magnetic reversals are important to identify the mechanism for moving continents.

6 0
3 years ago
Nitrogen fixation is A. the conversion of gaseous nitrogen into an organism friendly form (ammonia (NH3). B. preplanned setting
Stolb23 [73]

Answer:

The correct answer is option A. "the conversion of gaseous nitrogen into an organism friendly form (ammonia (NH3)".

Explanation:

Nitrogen fixation is a biological process at which gaseous nitrogen is converted into an organism friendly form (ammonia (NH3). Nitrogen fixation is performed in nature by microorganisms in the soil. Some of these microorganisms have a symbiotic relationship with plants. These microorganisms convert the gaseous nitrogen into ammonia, which is used by the plant as a source of nitrogen.

8 0
3 years ago
Define the following
asambeis [7]

Explanation:

A. Shine-Dalgarno Sequence:

  • This is a binding site found in the messenger RNA (mRNA) in prokaryotic organisms. It is found upstream of the start codon AUG and aids in the initiation of  protein synthesis

B. SRP:

  • Signal Recognition Protein (SRP). This acts by binding to the bacterial ribosome, which as a result restricts protein synthesis.

C. NLS:

  • Nuclear Localisation Signal is a short amino acid sequence, which is responsible for transporting proteins from the cell cytoplasm into the nucleus. The NLS is also responsible for the development of the nuclear envelope of the cell.

D. Ubiquitin:

  • Found predominately in Eukaryota, the ubiquitin is a protein that aids in the control of other proteins within the organism.

E. Specificity Factor:

  • Also known as the sigma factor, is responsible for the initiation of bacterial transcription. It is recycled during the transcription process and is only required at the initiation of transcription.

F. CRP:

  • cAMP Receptor Protein (CRP) is involved in catabolite (glucose) repression and serves as an inducer in the process.

6 0
3 years ago
In garden peas, tallness (T) is dominant to shortness (t) and axial flowers (A) are dominant to terminal flowers (a). What are t
Delicious77 [7]

Answer:

The correct answer is explained below:

Explanation:

  • According to the question, heterozygous tall, heterozygous axillary plant has the following genotype, TtAa.
  • It produces the following gametes: TA, Ta, tA, ta.
  • The heterozygous tall, terminal plant has the following genotype: Ttaa
  • It produces the following gametes: Ta, ta.
  • Crossing them,

           TA                       Ta                     tA                        ta

Ta      TTAa                   TTaa                 TtAa                   Ttaa

     (Tall, Axillary)    (Tall, Terminal)    (Tall, Axillary)    (Tall, Terminal)

ta       TtAa                    Ttaa                  ttAa                   ttaa

     (Tall, Axillary)     (Tall, Terminal)   (Short, Axillary)  (Short, Terminal)

  • The genotypes of the offspring obtained are: TTAa, TTaa, TtAa, Ttaa, ttAa and ttaa respectively.
  • The phenotypes obtained are:
  1. Tall, Axillary = 3.
  2. Tall, Terminal = 3.
  3. Short, Axillary = 1.
  4. Short, Terminal = 1.
8 0
3 years ago
How many recessive alleles I need for an expression of a recessive phenotype
Arisa [49]
You need two recessive alleles (xx). If even one dominant allele is present, the dominant trait will show (Xx or XX will both result in the dominant trait showing). That’s why they’re called dominant traits, because they overpower the recessive traits. In order for a recessive trait to show you must have two recessive alleles.
7 0
3 years ago
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