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SVEN [57.7K]
2 years ago
4

There is still some controversy among biologists about whether Neanderthals should be placed within the samespecies as modern hu

mans, or into a separate species of their own. Most DNA sequence data analyzed so farindicate that there was probably little or no gene flow between Neanderthals and Homo sapiens. Which speciesconcept is most applicable in this example?A) phylogeneticB) ecologicalC) morphologicalD) biological
Biology
1 answer:
beks73 [17]2 years ago
4 0

Answer:

Option-D

Explanation:

There are many ways to define a species on the basis of the phylogeny, morphology and biological relationships.

The species according to the biological species concept are the organisms which can interbreed and produce the fertile offsprings but show reproductive isolation from other species.

In the given question, the modern humans and Neanderthals showed no gene flow that is they are not able to reproduce between them or we can say that they were reproductively isolated from each other. Therefore they can be classified according to the biological species concept.

Thus, Option-D is the correct answer.

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Jorge, who just finished a large dinner an hour before, is offered a slice of pizza by his roommate. jorge says, "no thanks. i'm
Klio2033 [76]

The right answer is: Leptin .

Leptin is a hormone closely linked to the regulation of energy consumption and expenditure: appetite, metabolism, and hunger.

A hormone is a protein with a messenger function. This means that once released into the bloodstream, she goes to another part of the body to transmit a message to specific receptors.

Leptin is manufactured in white adipocytes (adipose tissue) where triglycerides (fats) are stored and acts on the hypothalamus.

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2 years ago
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You notice two birds living in different parts of the same tree outside your house. They have similar markings and are of a simi
liubo4ka [24]

Answer:

They do not belong to the same population

Explanation:

These two similar birds do not belong to the same population because a population is made up of groups of similar organisms of the same species that occupy the same geographical region including the capability to interbreed. This two birds despite the similar markings, they do not have the capability to interbreed thus they are not of the same population.

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2 years ago
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if carbon dioxide levels in the atmosphere double, which biome would be introduced in the Northwest territories
Butoxors [25]
A plant-life filled biome of sorts, like a thick forest.
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2 years ago
Which of the following characteristics of protein will remain intact if the protein is denatured?
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E.the number of amino acids in the protein
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Jet lag occurs when a person moves rapidly from one time zone to another, causing conflict between the body's biological rhythm
vova2212 [387]

Answer:

c) melatonin

Explanation:

Melatonin its a hormone formed by the pineal gland, which regulates an individual wake cycles and sleep. Jetlag alters the hormone function leading to an alteration with the body clock of the persom.

Jetlag is a sleep disorder common to those who travel swiftly over several time zones. It is not a permanent sleep disorder. Its due to the body's internal clock lacking sync with cues generated in a different time zone, Cues may be due to light exposure and how often the person eats.

A basic factor on ones internal clock is sunlight. It controls the regulation of melatonin which aid in synchronizing cells in the body.

Specific cells of the tissue at retina moves the light signals the thypothalamus.

At night, the hypothalamus signal to the pineal gland to produce melatonin. At daylight hours, the reverse is the case.

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2 years ago
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