What causes a greater amount of pressure in the inner core?

2 answers:

6 0

It turns out that many materials can be solid at a higher temperature if the pressure is also higher. so even though it is hotter in the inner core the pressure in the core is also higher and you can have a solid iron nickel instead of liquid

Aneli [31]2 years ago

4 0

Answer 1: The inner core is indeed hotter than the outer core. However, the PRESSURE on the inner core is greater than the pressure on the outer core and the melting point of iron, the main constituent of the core, INCREASES as the pressure goes up.

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What is a gland (2 sentences)

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a specialized cell, group of cells, or organ of endothelial origin that selectively removes materials from the blood, concentrates or alters them, and secretes them for further use in the body or for elimination from the body — compare endocrine gland, exocrine gland.

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3 years ago

List two additional populations (other than those listed in the lab) for which

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Indirect methods like mark and recapture become a strong tool to estimate population size or density in species on which it is impossible to apply a direct methods. Because of their biological and ecological characteristics, the Gypsy moth and the Green lizard populations are good examples for which mark and recapture would work well.

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There are different methods to study population density. There are direct methods and indirect methods. Among these last ones, we might find the Mark-Recapture technique.

The Mark-Recapture technique assumes that

the population is closed during the sampling season, there is no mortality nor natality,
marks in the individual last the whole sampling season, and they do not affect the marked individual or their behavior.
marked individuals are randomly distributed in the population, and
all the individuals have the same probability of being sampled.

The method consists of capturing a sample of individuals belonging to the population under study. After capturing the individuals, the researcher marks and releases them again. The third step is to sample again: The researcher captures new individuals and counts how many of them are marked. These marked individuals belong to the first sample.

Indirect methods like this become a strong tool to estimate population size or density in species on which it is impossible to apply a direct method such as counting individuals.

For instance, if we need to estimate insects population density (Gypsy moth population) or reptiles population density (Green lizard population) because of their biological and ecological characteristics, the best way of doing it is by applying indirect methods. These species characterize as small-sized, fast to escape, they can hide in small inaccessible places, they have nocturnal habits, their reproductive rate is too high, and their distribution rate is wide. Among many other characteristics, their population density can not be estimated by direct methods. Mark-Recapture technique is the most suitable one.

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2 years ago

A scientist is studying a cell and can clearly see that it has ribosomes and mitochondria. Which statement best describes how th

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The cell is eukaryotic because it contains mitochondria.

nucleus

Explanation:

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3 years ago

Which of the following terms describes a lipid molecule that has only single

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3 years ago

Norman Triplett observed that adolescents wound a fishing reel faster in the presence of someone working simultaneously on the s

slavikrds [6]

Answer:

social facilitation

Explanation:

The concept of social facilitation was first proposed by Norman Triplett. After observing a cycling event, in which he noticed that cyclist performed better when they have others around competing with them, rather than cycling alone just against time. This led him to duct an experiment where he gave some children strings to wound fishing reel. He observed that, children wound the fishing reel faster in the presence of other children performing similar task, when compared to when perform such task alone.

This concept discovered by Norman Triplett, best illustrates the concept of social facilitation, which posits that, individuals tend to perform better in the mere presence of others or when they perform a task with others, than when performing the task alone.

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3 years ago