The organisms in a pond and the physical factors

1 answer:

galina1969 [7]3 years ago

4 0

The organisms in a pond and the physical factors <span>influencing them best describe "an ecosystem" since this is a self-contained environment will multiple organisms. </span>

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Which is NOT a potential threat or danger to an ecosystem rich in biodiversity? A) Deforestation B) Plate Tectonic Activity C) G

IrinaK [193]

The correct answer is option D, that is, genetic diversity among the species.

The sum of genetic characteristics in the genetic makeup of a species is known as genetic diversity. It is differentiated from genetic variability that illustrates the capability of genetic features to change.

The genetic diversity functions as a medium for the populations to amend with the fluctuating environments. With more changes, there is more possibility that some individuals in a population will exhibit different forms of alleles, which are appropriate for the surrounding.

These individuals hold high possibilities of survival in order to generate offspring exhibiting that allele. The population will continue for more generations due to the accomplishment of these individuals.

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3 years ago

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ECG wave that causes ventricles to contract

GarryVolchara [31]

Answer:

S-T segment of ECG shows ventricles contraction.

Explanation:

The ECG is used to measure the electrical signals that controls the contraction and relaxation of heart, most commonly known as heart rhythm. S-T segments are the region after the QRS wave in ECG which is further followed by T waves. The S-T segment is generally shown as a straight line as no electrical signal pass through it and this is the time when ventricles contraction in the heart takes place.

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3 years ago

True or false: sensitivity differences during light and dark adaptation result, at least in part, from the difference in bleachi

arsen [322]

True, photopsin and rhodopsin are the photoreceptor proteins found in the cones of the retina and are the basis of color vision.

<h3>What is the function of rhodopsin?</h3>

The retina contains a chemical compound called rhodopsin. It is responsible for converting light into electrical impulses that the brain interprets as vision. Nerve fibers from the retina come together at the back of the eye and form the optic nerve, which carries electrical impulses to the brain.

<h3>What is the function of the retina?</h3>

The function of the Retina is to capture light through the cornea, pupil and lens, and, through the optic nerve, convert it into neural signals and send them to the brain, which transforms it into visual recognition.

With this information, we can conclude that A very thin layer of light-sensitive tissue, located at the back of the eye, the retina is formed by millions of photoreceptor cells, which capture, record, decode light waves and, through the optic nerve, send them to the brain, where the vision.

Learn more about rhodopsin in brainly.com/question/3648231

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2 years ago

Penguins and orcas are both black and white, have developed fins for rapid swimming and are able to tolerate cold water, but pen

fiasKO [112]

Answer:

Analogous structures

Explanation:

Analogous structures are similar structures that evolved independently in two living organisms to serve the same purpose.

Analogous structures are examples of convergent evolution, where two organisms separately have to solve the same evolutionary problem – such as staying hidden, flying, swimming, or conserving water – in similar ways. The result is similar body structures that developed independently.

In the case of analogous structures, the structures are not the same, and were not inherited from the same ancestor. But they look similar and serve a similar purpose.

For example, the wings of an insect, bird, and bat would all be analogous structures: they all evolved to allow flight, but they did not evolve at the same time, since insects, birds, and mammals all evolved the ability to fly at different times.

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3 years ago

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g Indium has two naturally occurring isotopes: 113In with an atomic weight of 112.904 amu, and 115In with an atomic weight of 11

aleksandrvk [35]

Answer:

Fraction-of-occurrences of 115In isotope $= 0.957$