Biology, 27.03.2020 20:34 zanedog2018

Sympatric speciation is .

Hint: It is due to a radical change in the genome.

a. especially important in the evolution of island species
b. the appearance of a new species in the same area as the parent population
c. the emergence of many species from a single ancestor
d. initiated by the appearance of a geographic barrier
e. the process by which most animal species have evolved

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Answer from: amxndaboogie

b. the appearance of a new species in the same area as the parent population

Explanation: sympatric speciation is the apprearance of new individual from the ancestor and they both live together in the same environment. It is the genetic variation that occurs within individual after interrracting with each other over a long time.

Individual species after staying with each other for a long time tends to bring about new type and offspring and this offspring also lives among the ancestor even when they are not related. Example is a maggot living in apples after a long time the offspring also take the apple as there host cell.

There are three geographic mode of speciation, Allopatric speciation,sympatric speciation and parapatric speciation.

Allopatric--- Appearance of new species from geographic Isolation of some species.

Parapatric---appearance of new species from the meeting of two diverge population

Answer from: Quest

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients: open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures: the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

Answer from: Quest

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explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

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Sympatric speciation is .

Hint: It is due to a radical change in the genome.

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