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Wewaii [24]
3 years ago
9

What is the driving force for the movement of lithospheric plates ?

Biology
1 answer:
Pavlova-9 [17]3 years ago
4 0
The driving force for the movement of lithosphere plates is convection currents. These currents are found in the inner core of the earth and take the heat from the core to the lithosphere. Tectonic plates are able to move because of the relative density of oceanic lithosphere and the relative weakness of the asthenosphere. Dissipation of heat from the mantle is acknowledged to be the original source of energy driving plate tectonics. The current view, although it is still a matter of some debate, is that excess density of the oceanic lithosphere sinking in subduction zones is the most powerful source of plate motion.
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How does genetic variation affect the type of traits or the adaptations in the individuals of a species?
Gnesinka [82]
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3 years ago
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3 years ago
Solve 9x2 12x – 24 = 0 using the quadratic formula.
Tom [10]
X = about 1 or x = about -2

9x^2 + 12x - 24 is standard form: ax^2 + bx + c

quadratic formula: x = (-b ± <span>√(b^2 - 4ac)) / 2a
x = -12 </span>± <span>√(12^2 - 4(9)(-24)) / 2(9)
</span>x = -12 ± <span>√(144 - (-864) / 18
</span>x = -12 ± <span>√(144 + 864) / 18
</span>x = -12 ± <span>√(1008) / 18
</span>x = -12 ± √(1008) / 18
x = −2 ± 2√7/3 
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5 0
3 years ago
Superficial similarities in structures that have the same function can seem like they are evidence of a common ancestor, but the
slavikrds [6]

Answer:

Distinguishing between Similar Traits

Similar traits can be either homologous structures that share an embryonic origin or analogous structures that share a function.

LEARNING OBJECTIVES

Explain the difference between homologous and analogous structures

KEY TAKEAWAYSKey PointsOrganisms may be very closely related, even though they look quite different, due to a minor genetic change that caused a major morphological difference.Unrelated organisms may appear very similar because both organisms developed common adaptations that evolved within similar environmental conditions.To determine the phylogeny of an organism, scientists must determine whether a similarity is homologous or analogous.The advancement of DNA technology, the area of molecular systematics, describes the use of information on the molecular level, including DNA analysis.Key Termsanalogous: when similar similar physical features occur in organisms because of environmental constraints and not due to a close evolutionary relationshiphomologous: when similar physical features and genomes stem from developmental similarities that are based on evolutionphylogeny: the evolutionary history of an organismmolecular systematics: molecular phylogenetics is the analysis of hereditary molecular differences, mainly in DNA sequences, to gain information on an organism’s evolutionary relationships

3 0
2 years ago
How long do you think it would take to create a canyon as deep as the Grand Canyon? Explain your reasoning.
ivann1987 [24]

Answer:

Erosion is the cause for most canyons and caves it’s caused by water or just air beating against rocks

Explanation:

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2 years ago
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