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3 years ago

Propose an explanation why there might be a sudden appearance of a species in the fossil record.

Biology

2 answers:

ladessa [460]3 years ago

8 0

Fossils could not be found in that layer of rock

adelina 88 [10]3 years ago

4 0

<h2>Sudden Appearance of a Spieces in Fossil Record - Option 4 </h2>

There might be a sudden appearance of a species in the fossil record because fossils could not be found in that layer of rock. Fossils are the remain of the organisms which do not exist now.

But they were in the ancient times where there are archives of the fossils or imprints. For instance, dinosaur.

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shusha [124]

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2 years ago

las ondas transversales producidas en una cuerda de guitarra tienen una rapidez de propagación de 150 m/s y su longitud de onda

Alex Ar [27]

Answer:

Period of the waves = 0.00013 s (Approx.)

Explanation:

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4 0

2 years ago

Matings between individuals from the two populations of Rhagoletis produce hybrid flies that appear to be healthy and have norma

Mama L [17]

<h2>The correct answer is : C.</h2>

Explanation:

According to the question, mating between two populations of Rhagoletis produce hybrid flies.
This means that the two population is present in the same habitat or locality, hence they are capable of coming in contact with each other and mate. Hence, the answer cannot be Habitat Isolation.
Mating produces hybrid flies. This is possible when the gametes (egg and sperm) of the two different populations are capable of capable of coming close to each other and undergoing fusion (fertilization). Hence, there is no Mechanical Isolation.
The zygote formed by the above fertilization is capable of developing into healthy hybrid flies with normal life span. Hence, Pre-zygotic Isolation is absent.
But the hybrid flies formed are sterile and not fertile, that is, they are incapable of producing viable gametes which can undergo fertilization and produce a new offspring.Therefore, the eggs laid by the hybrid flies hatch less often. Hence, there is existence of Reduced hybrid fertility.

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3 years ago